will the latest release of redsnow allow me to downgrade my jailbroken, unlocked 8gb 3G? i am running iOS 4.2.1 with BB 6.15.00. i was reading here and other forums something about soft shsh blobs i think. i want to go down to iOS 3.1.3. if i can, do i have to downgrade the BB also? should i downgrade the BB? my iphone runs so slow now i have moments where i want to just get rid of it. not interested in oodles of apps, some would be nice but i can do without to tell the truth. all i really need is a smooth running device. Also 4.2.1 was the FW on the phone when i got it as a gift. i am not completely inept, i just need to know if i can or cant. the ability or lack thereof will set me free! thank you in advance to any and all who take the time to read this!!