A lot of people were very critical of upgrading the baseband to 6.15 on the 3g and 3gs.. however, in my situation im pretty sure that it's the perfect solution to my unlocking and jailbreaking needs.. I don't rely on Apple warranty so don't have the fear of losing warranty. If I upgrade to 6.15, I'll have to use a custom firmware every time I upgrade. But since there are no unlock able firmwares past 5.13, I'll have to use a custom firmware anyways to preserve base band. If I end up upgrading accidentally through itunes, the baseband upgrade won't go through because I'll be on 6.15.. I'll get thrown into recovery or whatever, or I could always revert to an older firmware with saved blobs. So by upgrading my 3gs to 6.15 (currently on 5.13), and saving blobs for 4.02, I'll ensure that my phone will ALWAYS remain jailbreakable and unlockable. Thoughts?