I emailed them a few weeks back about support for the prime. I got back a canned response stating they are continuously working on supporting more android devices. It then stated that they could not give a timeframe for when the prime would be supported.
I've read on some other forums for various tablets (Toshiba Thrive and Galaxy Tab for example) that you could install a "hacked" version of flash which would allow Hulu (via web browser) to work on a tablet. I'm curious if anyone has tried that on a Prime as watching shows on Hulu is one of the things I would like to do when I can get my hands on one.
Good News!!! It looks like we might have an option for Hulu. A modified hulu.apk is now available to give access on devices not certified by Hulu thanks to Blunttedsmurf over at XDA. I hope this will work on our primes. I will try it as soon as I have a chance.