Twitter showed there was an update in Market last night, so naturally, I updated. After like an hour, I noticed it was still showing as "Installing..." in Market. I turned off the phone and back on. Still showed "Installing..." I went to sleep figuring it has to finish by the time I wake up. Nope. I tried uninstalling Twitter with AppBrain. Still shows "Installing..." Rebooted my phone again. Same deal. Any help would be GREATLY appreciated!