Boost Mobile BlackBerry

Hey guys I bought a Boost Mobile BlackBerry a month ago, and its good and everything but I can easily tell it has outdated software. The 8330 obviously doesn't have the best software. It's slow, it freezes, it only has about 32MB of application memory, and it just overall doesn't feel like it was a phone worth $250+ (except for it being Boost Mobile which is an amazing deal) So my question is, is it possible to transfer the Boost Mobile CDMA SIM card into a Sprint BlackBerry? I'm pretty sure Sprint uses CDMA, and they both basically are the same carrier so is this possible?

Unfortunately, no. With the exception of the Tour, all the cdma sprint phones are hard coded and do not even have a sim slot. My understanding is that the sim slot on the Tour is for use with a GSM sim card, for roaming compatibility.

Dang, really? That sucks, I was planning on buying the Tour off ebay and switching the cards. Is there a possibility to do it with any other carrier or no?

Should work with Nextel BlackBerry's but some require software to make them work.