Just a couple days after the iPhone3.0 Beta was released for developers, someone's already cracked it wide open.

Ubergizmo reports that the iPhone Dev Team has jailbroken this latest iPhone update, but hasn't launched it yet. The theory is that they?re waiting for the official debut this summer before releasing it into the wild.

What if you've jailbroken AND unlocked your phone? Well, then patience, grasshopper. The team says that the YellowSn0w unlocking software doesn't play nice with the update yet, so you won't want to rush into 3.0 until this wrinkle's been ironed out. Otherwise, you could wind up with some big problems of the irreversible kind. So if you don't want a shiny, expensive paperweight, stay tuned. We?ll let you know when the coast is all clear.