Thanks for the link. I'm trying to find the Metro Nandroid backups again so I can post a link. With the Amon-Ra recovery and the stock Nandroid backups, we (Metro users) should be able to recover from most screw ups.
Here is the link below to the Metro (and a Cricket) nandroid backup for people who have a custom recovery with nandroid. The total instructions aren't up yet but, my guess is you would:
1. Drop the files to your sd card in a folder structure somewhat matching nandroids structure. /nandroid/mem=211M/Stock/.
2. Boot into recovery (press and hold vol up and send then press power)
3. Go to Backup/Restore.
4. Select Nand restore
5. Select mem=211M
6. Select Stock(if thats what folder you named it).
7. Follow the instructions on the screen.
I haven't actually done the restore but, I did do the steps up to but not including the actual flashing. There was also a recovery image in the nandroid backup. I removed it on my card so I wouldn't overwrite my custom recovery. You can do whatever you want.
http://forum.xda-developers.com/showthread.php?t=909243