Cute, it might be interesting to see a video about it, or even handle and play with one.
Probably like the old dev edition SL-5000 Zaurus which had half the memory 32mb vs the 64mb of the production SL-5500. I survived the early to mid 2000s with one in my pocket and a Nokia 6600 over IR link some sweet GSM data. What I like is prototypes where they are actually better say with 4x the memory or a machined titanium body.
I still would like to see the rumored black coated Ti and sapphire Vertu prototype which ran Maemo5; before of course Vertu and sort of Nokia went away.
You wound not belive what I accomplished with that run of Zauri before I upgraded to the N900.
GNU-Linux in your pocket is great, and a hardware keyboard!
https://en.wikipedia.org/wiki/Sharp_Zaurus