Sumo UK sell them but extracting info from them is like trying to get PPR for a non Schengen flight out of San Sebastian
They would not even talk to me until they telephoned me to check I was not shipping them to Iran for designing atomic bombs (no kidding).
If you google for
sumo st312
you dig out a few resellers. I have some pricing... trying to check it out versus exact part numbers
10.4" Wireless Tablet ,Atom Z530 1.6GHz , 2GB Flash 1GB Ram Xpe OS
£1,362.34
10.4" Wireless Tablet ,Atom Z530 1.6GHz , 32GB SSD, 1GB Ram, Tablet PC
£1,528.37
3M Pix CCD Camera integrated (362/312)
£70.26
extended use internal Battery Pack (Li-Ion, 28W) aftermarket
£104.02
8.4" Outdoor Viewable LCD, add
£178.63
10.4" Outdoor Viewable LCD, add
£238.18
Extended Capacity Internal Battery Pack upgrade (only with new unit)
£23.82
1 - 2GB RAM upgrade for DT312
£59.54
i.e. basically about £2k for a sunlight readable ST312 10" tablet with a 32GB SSD and a GPRS/3G radio (handy for loading up approach plates which somebody emailed you before the flight, etc).
A very similar price to the Motion LS800 I currently use but this is a much slicker product AFAICT without actually seeing the real final-spec item.
I did have a play with them at Friedrichshafen, where a very arrogant "aviation tablet shop" outfit was flogging them off the Jepp stand for a cool 2900 euros for the very basic version
but since they were not interested in discussing details I could not establish the exact part numbers. I think the ST312 is the one to go for, with the silly corner rubbers removed. These are very light and the display is the best you have ever seen.
I am sure they are custom made in China - just like the Xplore IX104 and prob99 the LS800.
Motion is out of this game now.