I'd imagine it'll be relatively easy to make a lot of existing android games compatible with the console.
The kickstarter has been an incredible success (so I guess there's a lot of people got faith in it) - their target was $1m in a month, and they got double that in the first 24 hours (and it's currently at $3.8m) so there's ample funding to get it up and running and lots of sales before the console's even been designed.
Looking forward to it, personally. Nice to see a different approach, with the "feel free to modify and create" attitude that's part and parcel of the Android community; and it's a fantastic way for indie developers to blossom.