A compliment from Bunnie is something to be proud of! The PiPad looks awesome, well done :) I'm working on a palmtop in the vein of an HP 200LX, running RetroBSD on a PIC32 micro controller. So much fun, but gosh hardware hacking is harder than I thought. New found respect for the hardware people!
RetroBSD is a port of BSD 2.1 for pic micro controllers, so a lot of the work is done for me! I'll be writing drivers for the lcd and key pad. I'm going to be making the keypad from scratch at this point, but performance wise it's actually pretty damned fast!
While the RAM is lacking, it should be enough :) the case will likely be vacuum moulded, I've experience doing that when I use to make portable consoles from hacked SoC's, but the prototype will be 3D printed for sure.
Quick grep for cost/price didn't show up anything. Sorry if I missed. How much did it cost? Just out of curiosity, I'm wondering if it's possible to build an extremely cheap but waterproof tough tablet for toddlers to play with.
They don't care about performance at all.
sdoering got most of it right. I also would add backups, it doesn't feel safe keeping all your pictures on cameras sd cards for weeks. Actually, for me it's mostly backups, that's why a dirty cheap rougged tablet would be nice (cheap because I don't do many of these trips).
That's a lot. I was looking at $50-$75 price point. Don't care about screen resolution. It can be resistive touch. One can skip on storage too. But it needs to light up when you touch & make sounds. Most of all, handle all the abuse :)
Not the OP, but I'm guessing Ubuntu? Especially since Unity is touch friendly and Ubuntu is generally the best Linux distro out there when it comes to drivers etc. Also because Ubuntu are developing a touch version for the N7.
I'm guessing the battery life is probably around 7 hours or so. Again, take this with a grain of salt :)
Ubuntu Touch is currently in a weird state with regard to Nexus 7 support in that the current pre-release build doesn't support the newer, far superior Nexus 7 2013 model (razor), only the older model (grouper), but Canonical also has announced that moving forward grouper support will be killed and only razor will be supported.
Considering it is all in a developer preview state at this point, this isn't a big deal but may be important information for anyone thinking about buying a nexus 7 right now to be used as a native Ubuntu device.
> Ubuntu is generally the best Linux distro out there when it comes to drivers etc
Thank you for this comment. It shows how RMS was correct; when people think "Linux", they should really be thinking about the kernel inside the computer. This is what handles "drivers, etc" that you were talking about. a Linux Distribution (normally referred to as GNU/Linux, because it has a full GNU system alongside the kernel) can have a branding such as Red Hat, Debian, or Ubuntu. A similar situation exists in the BSD landscape as well; FreeBSD and Apple's MacOS share kernels (Darwin was based off FBSD's kernel), but you're really just using a branded version of Berkeley Systems Distribution.
Ubuntu provides a GNU/Linux distribution (though they seem to be anti-GNU overall) with the latest stable kernel they can get away with. Any distribution with a kernel of the same version will have the same hardware compatibility with "drivers, etc".
Unity is not the only touch interface. Plasma Active and Enlightenment both have touch interfaces that make Unity pale in comparison.
After trying Ubuntu Touch on my 2012 Nexus 7, and finding it WAY too unstable for my needs (I averaged maybe 10 minutes of use between hard crashes), I installed Arch on a chroot, accessed via VNC. The specific applications I used are Linux Deploy and bVNC Free. Added an external bluetooth mouse and keyboard (the keyboard being a cheap cover-with-gutter thingie), and presto, a usable desktop Linux in my coat pocket.
It works better than expected (no crashes, slight lag but nothing serious), and I can do 50 wpm on the cheap keyboard (after some extensive remapping), which surprised me (my average speed on a full keyboard is around 100 wpm). I've typed and LaTeXed a few papers on the thing, and just yesterday I built R from source for a biostats class.