Nextel Blackberry with boostmobile Question?

I have had a Nextel 7100 blackberry and a nextel 7520 blackberry, They both worked perfectly with boostmobile, (using ramble IM for AIM and Opera Mini for browsing) everything except the calls was free Will this same thing work on the 8350i?|||Advice...If you want all of the features of a Blackberry, then pay what you are supposed to. Get a Nextel plan and pay for it.