form factor does seem unusual. and the FF looks different between the two pictures with the posting. can someone who has it or seen it comment?
update: I looked at specs on BB site and it says 7.6"x 4.8"
With tablets, there are three major sizes: 7", 9.7", and 10.1". Often times, generic cases and other accessories are difficult to come by if you are not in one of those categories. I would imagine since this is not a very popular tablet, accessories would come at a premium price unless found on clearance. I used to own a Toshiba Thrive and I was able to purchase a generic keyboard case which saved me ~$30 compared to the one made specifically for the Toshiba Thrive.