Hello Hacking Gurus -- got a few simple questions. Currently running: Iphone 3g, version 2.2(5g77), Firmware 02.28.00, running Cydia and yellowsnow (using t-mobile). Want to upgrade to 3.0 1. As I understand - i need to upgrade to 3.0 via i-tunes, then install red snow then install ultrasnow. Correct? 2. I do not want to lose any contacts or info on my phone when I upgrade. Will i? What if I need to restore if the update does not work, will I then lose data? 3. I do not have any other stuff installed on my phone. Is there anything I can do to make it more efficient? 4. I am not on the t-mob data plan, is there a way to use EDGE by a hack? Thank you all.