[tdcrone]

I can tell you something else, or rather expand the comment a bit.

reeg is correct that until the past few months boost was iDEN-only, i.e. a CDMA 6700 couldn't work. Basically you've got iDEN (old Nextel/new US DoD), CDMA (Sprint,Vz) and GSM (AT,Tmo,Europe and most of Asia). No normal phone will be compatible with more than one of the three (and the owners of the exceptions will know it).

Your Sprint 6700 is CDMA. MetroPCS is all CDMA, as are many of the prepaid providers. Non-big providers are more likely to let you bring your own phone.

Since Boost is just adding CDMA support now it looks like they are limiting people to their vendor phones designed for the Sprint network. IIRC, Boost is a Sprint-owned thing, so they aren't likely to change their minds about that, but then maybe if they have another bad quarter they'll do it anyway.

If you're close to the store, go ask the counter clerk if you can bring your own CDMA phone and get the unlimited plan. If that doesn't work ask if you can buy one of their phones and then do an ESN swap for your old phone. They'll probably have to call support for that one.

Honestly I suspect both answers to be 'no' but you might get lucky. If so, give it a month (mid-April or early May) and see if they answer the same way.

That said, does Boost do mobile data? It looks like no, and that might not be an issue for you if you're always near wifi. Just a thought.

Cheers.