Here's where I'm at in my attempt to make bootable OS X Lion USB Flash Drive... In Disk Utility, I first formatted the flash drive as follows: "1 Partition" "GUID Partition Table" "Mac OS X Extended (Journaled)" Named it "OS X Installer". PROBLEM IS...I apparently did NOT quit the install process right at the beginning and was unable to save a copy of the installer app to a safe location. Therefore, the new OS X Lion installed and booted on my MBP from the USB flash drive. I went to the Apple Store but I could not find OS X Lion to try and download again. Am I out of luck here or what other options are there?