I should officially be named the PPC hack king when it comes down to recovering them from positions where it seems they might be bricked :P
I installed a custom cooked WM6 ROM for my Wizard (I-Mate K-JAM) and then moved to a second custom ROM, which quite sadly, crashed. This time it got stuck in the IPL/SPL load screen so here is what you do when you’re in such a dilemma.
Remove your battery and then insert it again so now your device is off. Then press the power button + camera button and the phone will start off