Quote de Daerid
It's happened twice now. I figured time 1 was a fluke.
I install, and am told to Respiring. I click on Respring, and the phone locks up after about 30 sec. I wait for a while, then force a reboot because the phone is completely unresponsive, wont even take a call.
It sits at the Apple logo until, prolly would until the battery died... back to DFU mode and restore.
Fun fun fun...
Something like that happens even to unjailed and locked iPhones when using official AppStore apps. It's not a WinterBoard or a Cydia problem, it seems a FW 2.0 problem that hopefully will be fixed by 2.1
There are articles on this in TUAW and other feeds
It turns out that Installer won't produce this problem because it uses a different way of respringing. So, if you just look at the behavior of your machine you might think it's WinterBoard or Cydia fault, but it isn't.
Things aren't always as they seem to be