I currently have beta 1 installed. Had no issues with that. So beta 2 comes out, I installed itunes 10.5 beta 2 and downloaded hte new firmware. I tried to Restore unsing shift + restore, itunes then tells me that the firmware isn't compatiable..... I tried restoring to 4.3.3 Then tried again....gave me the same message. However, it lets me install ios 5 beta 1 still..... help!