Another one came to my mind.
RFID Tag TOH:
NFC only works over a few centimeters AFAIK. Being able to at least read RFID tags over a distance of, say, 1 meter would allow the Jolla Phone to be used for inventory checks and such.
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Not really a need to mention the want for a keyboard attachment, but since i could not vote for the poll here’s some ideas for form factors the entire back-attachment-with-pins could afford. (It’s probably been done to death already)
It would not be truly a phone you can easily SSH into things with with at least a laptop style keyboard. The mechanical concepts here are honestly quite ugly but carry the point across. being able to add to the entire back could easily allow for ergonomic handles, wider keyboards on portrait mode, and other things. There is even empty space on both of these concepts which could house a small battery, a headphone jack, or some other features. (though a headphone jack to try and figure out how to make jams on the go with a music tracker would be the dream…)
Even if not sshing into stuff. being able to write emails or chat with others with real keys would be great.
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Dongle life is always a dongle life. + you need to get the special dongle if you want charging as well. I’d rather avoid going back to that hell if I can.
Folks, the jack topic has many followers, including me, and even a dedicated thread:
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Before i forget it - just stumbled upon a iphone case with eink screen that can be refreshed via nfc.
Seems a nice idea that could work nicely for toh.
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Looks like nice toy, but from my pov it is useless. Full featured BW eInc display with touch layer have a lot of usecasec 
my favorite is now the navigation with bike 
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What would be a use case scenario here? I’m asking because I heard that a few times here.
GPS and network would be the primary consumption.
Turn by turn exists so you can either listen directly or from headphones, high brightness displays are the norm in the market.
From my perspective it looks like I can either use the phone as is, or if I have to have a TOH I can have something probably cheaper with extended battery and get more out of my investment in user experience.
That is a what if scenario ofc. Turn by turn navigation is done from my wrist for the last decade so I won’t need anything else.
You can so really good read the display in the sun.
And outside in the sun the main consumption would be the display.
PS: just try to ride a full day in sommer, you will understand.
Don’t get me wrong, I’m just trying to understand any situation where I could see benefit myself in this scenario.
I usually ride motorcycles in summer and I don’t use anything other than turn by turn from a watch (if needed) for a few reasons.
- Too many vibrations that ultimately will damage the device (camera moving parts). If we assume here it’s j2 with e-ink TOH it means no case and the device sits on its actual display, so I already feel anxious about it
- Distraction from the road. Not just the obvious, but also being conscious about the phone being on the steering bar and making sure I check it stays there.
- Natural environment. Even if the phone has IP rating (very high chance that j2 won’t have), hitting water or dust with higher speeds can damage the device. Especially since water and dust protection get worse over time.
Again, I don’t doubt that you or anyone else could enjoy a use case like this, but i feel like it’s not going to be “the norm” let’s say for a TOH like this!
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Yeah, good reasons.
I put my smartphone in a special waterproof bag and use it well for long rides. It is like soft phone holder, vibrations are not that high.
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Hello everyone, I would like to submit some ideas for modules, which it would be interesting to create in order to be able to use them as accessories and as functionalities of the other half. First of all a fairly complete photo / camera module, why not in association with ZEISS as in the great NOKIA era, which would offer an optical zoom, a wide-angle lens, a macro lens, a zoom and a night vision camera, not to mention the famous xenon flash. Then as a second idea, you could develop or add a high-quality audio dac for audiophiles. As a third idea, you could develop a complete physical keyboard like the one on the legendary Nokia N900. As a fourth idea, I propose a photo printer module so that we can print our photos at the moment and thus be able to share them immediately. In fifth idea, a radio transmitter and why not a walkie-talkie module. In sixth idea, a high-end 24/32-bit audio recorder. In seventh idea, I propose a laser meter module. In eighth idea, I propose an e-ink screen. As a ninth idea, I offer a quality audio speaker to be able to listen to your music on holiday evenings for example. In tenth idea, I propose an ultra-powerful flashlight module. In the eleventh idea, I propose a video projector so that you can watch your videos or also be able to present your presentations or professional projects to your employees.
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Well, there will be thousands of devices on the market. For, me it would be sufficient to do small batches with a company like jlcpcb (or the like). I already do small (<50 pieces) manufacturing in Hong Kong and I’m not going to get rich or anything, but for TOH, I think it could be better than break even. I live for break even.
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Well, let’s see how things are next year.
Have you heard about a very old design from Handspring
The idea back then was that when a module was inserted it would contain its application code and launch it. Could something like this be done now? No need to look for an App at all. Just assemble your backplate and you are ready to go! Behind the scenes this could mean to copy the application from local storage in the backplate to the phone and running it from there. Of course one could also get updates, etc, but the idea would be to make the instalation as easy as possible.
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Great! I was not familiar with the TOHs for Jolla1.
I3C seems a great but is limited to 10 mW per device. Not sure about the advantages / dissadvantages of using USB instead..
JP-1301 had also dedicated pins for +5V and GND in addition to the I²C-pins, and I don’t see any reason why the new phone wouldn’t have those as well.
IIRC, the cost of the Visor phone module – like the Visor camera – put me off buying one. I ended up getting a Nokia candybar phone, a Sharp Zaurus and a CF wifi card for the Zaurus instead.
And then a few years later all that stuff – plus a pocket-sized video camera, a pocket camera-camera and a scientific calculator – was replaced by an N900 for my portable equipment needs. The Garnet VM on the N900 was actually the final piece of the puzzle ditching the visor as a daily carry thing.
But back to Jolla. I’m not sure that putting software on a The Other Half makes as much sense now as it did in the Palm days. I don’t imagine the J2 having any shortage of storage for downloaded programs. But the nice camera idea (and the expanded battery idea) still fascinates me today.
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Just to add that Jolla confirmed in their latest update, that TOH will make it in the phone, even though the target hasn’t been reached yet.
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Was there anyone who believed it won’t be included regardless? 
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I was thinkin, we would not have TOH finally.