16GB is more than enough if you don't store all sorts of junk on internal memory, but use an SD card for storage. I think it's an excellent idea, to offer a budget alternative for those of us who just want a surf/communication tablet. I don't think I have ever used more than 8-10 GB internal memory on my JP1.
For me - the best colour would be full Transparent. Protypes are often made transparent, to sse inside, if all mechanical parts are on the correct place. it would be so cool, if we could have it transparent. it looks so geekish and diy-sh But i will be happy with full black also.