Originally Posted by SDreamer
Alright, that's what I was thinking, but I thought because there were so many rules against the discussion of how to spoof your IMEI that it might be possible that this might spoof the IMEI some how. But seeing how the IMEI is the same in Android as it is in Windows Mobile, and I haven't been hit with a "You have a smartphone here's your data plan" text message, I guess I'm safe. Thanks!
I have been told by an AT&T support engineer that they are gradually going through their database and matching up IMEI's, IMSI's, and plans to ensure that everyone has a SIM and plan that matches up with their device. I don't know if they are doing this methodically, or on a case-by-case bases as people call for support or purchase new plans/devices. But there is a chance they will discover that you have a PDA without a PDA data plan at some point.
I kept my original Cingular SIM and kept putting it into new phones for years rather than using the new SIMs that AT&T sent me with new phones. I never had an issue until the purchasing department (who manages the cell phone plans, etc for my work) disabled text messaging for everyone in the company (mine was one that was not supposed to be disabled). When I called purchasing to get it fixed, texting starting working again, but in the process all my data died. Then I called about that and ended up talking directly to an AT&T support engineer. He "couldn't enable data" for me because I had an "incompatible SIM." Never mind the fact that it had been working fine before. I guess they realized that the IMSI on my SIM was from an old device that was never compatible with data when it was purchased, (but it was not blocked from data either). I ended up having to put a newer SIM in my phone to get my data working again. I think in the end, the old SIM was using the older Cingular APN information (which still worked) rather than the newer AT&T/Cingular APN information. I think they blocked my data by disallowing my device (SIM) to connect to the older APN.
Device: Galaxy Nexus HSPA+ (takju)
Device: Samsung Galaxy Tab 8.9 wifi
ROM: stock, rooted with CWM
previous devices -
Device: Samsung Captivate i897
Hardware Revision: 1007
Device: HTC Fuze