Hi, I just got a G1 on eBay for my wife. She currently has a Blackberry Pearl Flip. Everything I read said I would need to switch the data to an Android plan. SHe currently has unlimited Blackberry web + Unlimites messages for $34.99. I talked to t-mobile and they said it would go up to $45 total for android data and unlimited messages because they no longer offer the $34.99 plans. The thing is when I put her SIM in the phone everything worked fine. I have a 3G signal and I can get to everything. Would they even know if I just kept the Blackberry data plan but used the G1? It would be nice to save the $10 a month if I could.