Yep, I can shed some light, first Boost Mobile has 2 different sides.
iDen side which works off the Nextel network, with the slow data speeds and the 'chirp' (Direct Connect) all of the iDen phones have an "i" in the model number i776/8350i for example.
CDMA side which is much faster with EVDO speeds with selected handsets, mainly Sprint branded phones.
So it is best to get a non-exclusive (no Hero, Moment, Pixi, Pre, Curve 8530, Evo etc.) phone and activate it on Boost Mobile's $50 Monthly Unlimited plan. Not only are you saving money, but Boost Mobile CDMA let's you BYOD ...just as long as its a non-exclusive Sprint branded phone.
And if you want an Android device... the closest you will get (as of right now) is a HTC Touch Pro2 running the Android port that can be found over on xda-developers.
I wish Virgin Mobile would allow Sprint branded phones
Have you ever danced with the devil in the pale moonlight?