1. The only blackberry model to work on Boost's iDEN network is the 8350i, there are no 88xx series that can work on it. Also when I say work, it's a very limited level of functionality. Due to a lack of service support on the Boost network, email and other data services were left out. Voice and (very) limited text only.

2. Yes Boost does have a $50 everything plan, but Boost Mobile only has the iDEN GSM/GPRS network with some very lacking dumb phones. There's no 3G, there isn't even a 2G, you get a max speed of about 19kb/s. If the unlimited everything includes a real internet plan with 3G and the possibility of 4G in the future AND the use of nice phones like Blackberrys and the N900, this *will* shake things up.