Maqifrnswa put together a raspbian image with the CLI wallet and witness node for Graphene/2.0 already, in this thread:

https://bitsharestalk.org/index.php/topic,17297.msg223696.html#msg223696

I was able to get the dumb witness node running on my RPI2, but got stuck there because I am also dumb.

Not sure about RAM requirements for a GUI wallet, but the RPI2 at 1GB is sufficient for the CLI wallet and witness node.

I was looking at these last week and was wondering the same thing.  The question I'm Concerned about is the ram? Isn't 2.0 being designed to allocate more ram to help the single thread cpu performance? The raspi I was looking at only had 512mb. I thought I read somewhere that 4gb would be the target allocation amount?
Either way, if these could be optimized for witness duties this would be really awesome!!!

Quote from: fav on September 09, 2015, 09:34:40 AM

Quote from: xeroc on September 09, 2015, 09:31:54 AM
A custom wallet to work with touchdisplay on that thing would be awesome!

+5% but that's easy I guess. as soon as we got a android wallet. I think you can install android on Pi's

Android is one avenue, but possibly overkill and less extensible than having it work on the basic raspbian-os. Things like custom built atms, POS-setups, vending machines etc might be possible for relatively low cost through the raspberry pi ecosystem.

On the other hand, the raspberry pi might be missing some essential parts to be reliable enough, as in missing a rtc and maybe lacking in power for good encryption and such.

Quote from: xeroc on September 09, 2015, 09:31:54 AM
A custom wallet to work with touchdisplay on that thing would be awesome!

+5% but that's easy I guess. as soon as we got a android wallet. I think you can install android on Pi's

A custom wallet to work with touchdisplay on that thing would be awesome!

https://www.youtube.com/watch?t=122&v=hqdz66Y-H7M

with the new touch display it's even easy enough for a simple user like me to use it.

can an entrepreneur please offer custom built version with BitShares 2.0 featues (witness/node) ?

I would pay a premium for this.