this device will be crowdfunding too? how long this device will work on one charging?

any wideo from running/starting or latency when typing?

nice but i need: usb (printer, power in from wall or powerbank, flash usb, headphone), long working time (week? similar 16Mhz Psion 5), better keyboard

and of cource store for buy this

How long this device work? (with ocasionaly wifi / email) 

Don't have yet a completely finished prototype that can be tested for that...

24h will be perfect

What You think https://collapseos.org

I've made already something similar that is just days away from release with my Base-18 project. It can be then easily ported on to other systems

Hi, I know this would not have tactile feedback but have you considered using a 10 point capacitive multi touch controller as a keyboard interface. A bonus is it could toggle between keyboard and mouse function. Also could allow for custom keyboard overlays. It may still be worth using a small processor to translate it to a ascii or keyscan link to the processor.

I am considering developing my own keyboard for projects, and I was fascinated by the technique used in the ello 2's keyboard.  Were there problems with it?  Did the pcb material end up cracking after 10000 cycles?  Did finger oils get underneath and trap dirt causing shorts and/or no contact? 

As far as environments go, MicroPython is goofy popular right now.  I believe ESP32 is the favorite processor for it.  There are quite a few boards out there using it, but I haven't seen anything with a proper keyboard, so it might be a hit. 

I always cringe when people suggest that BASIC is a great language to teach.  It wasn't in the early 80s when I learned it, and it certainly isn't now.  I think rosy nostalgia is coloring people's vision in that regard. 

No, there have not been any major issues with the 2M's keyboard design. If the top panel is not too soft or not too hard (mine, from memory, was 0.2mm in the final version), and the spacer panel is the right thickness too, everything works fine. The only problem is the cost of the solution. The 2M had 6 PCBs - top keyboard panel, spacer, main, two bottom spacers, and bottom lid. Those PCBs had different thickness each, and that made them a bit expensive as a pack. This here was an attempt to play with cheap tactile switches in order to optimise that part. I have not abandoned the PCB stacked solution and have designed something newer on that principle that once I make as physical board, will post here

Regarding Basic - you are absolutely right. I am working on something right now to take it straight on against the Python

What You think about increase keyboard? https://klawiatura.wordpress.com/

layout not important but number of keys is usefull. For french, japanese or korean.

Meybe add fpga? lokk this https://www.crowdsupply.com/sutajio-kosagi/fomu small fpga fit in USB

I love this so much. Has it gone any further? 

Not in this current schematic, unfortunately :-(
Not yet due to a number of reasons, but I have not discarded it

If you're still evaluating programming environments, I think Lua actually makes quite a good choice for applications like this. LIKO-12 is an example on GitHub of how one can have a command shell and Lua editor in the style of an 80s home (BASIC) computer. LuaROTS also exists and may give a good jumping off point for software. It's even supported on ESP32.

Would it be possible to find a supplier for a laptop style low profile keyboard that can easily be interfaced?

Is there a problem with the 2M keyboard?  Is it uncomfortable/difficult to use?  It seems like a simpler solution than many tactile buttons.