I've tried installing 1.0.4.1 2x now and I'm getting a boot loop. The first time I tried installing from ROM manager and didn't wipe app/data. When that didn't work, I restored my backup, downloaded the .zip file and manually tried to install it using CM Recovery this time I did a wipe. I've let it go for a good 15 minutes and it doesn't appear to be doing anything. I'm gonna pull the battery and restore again. I used the
Droidlife Froyo build as my starting point and installed the first baseband update in case that matters.