[japper88]

I think the issue is whether your sero plan originally come with unlimited text or it was a add-on. If you have unlimited text as part of your sero plan then you should be okay. However, if unlimited text was an add on (i.e. retentions added it to your account) to your sero account then you might have a problem.

Personally I switched from a palm centro to a tp2 in October and my account stayed identical and I did not lose unlimited text; however, I had unlimited text as part of my sero when I first got my sero.