Update 03/09/10:
Thanks to some of damageless’ handy work in this thread, we now have a working 2.1 that has still camera, video camera, and protected apps visible in the market. He did this by using the framework and apps from the Eris dump, and the kernel and drivers from fresh 2.0b and voila, everything worked. I decided to do the same thing using the Eris release that toast and I put out. However I have decided to not completely replease Fresh 2.0b just yet for three reasons. First is because Fresh 2.0b is technically a newer build. It has newer frameworks and newer apk’s, however they had to be replaced with the Eris ones to make everything work. Second is because I am certain we are getting our official update soon, and that will make all of this obsolete. And third is because I am going out of town in a couple hours and will be gone for 5 days. If there are bugs or problems in this version then I don’t want to take 2.0b away from people because I won’t be able to fix them! So if you want protected apps + video + everything already included in 2.0b (excluding wired tether and live wallpapers. LWP only kind of worked and kept crashing so I removed them) then grab 2.0b2. If you want the latest and greatest from HTC then grab 2.0b.

I will also spread the word that it seems a fix for the sign out issue is to put your gmail account in to the mail application. That actually could explain why I have never seen the issue.

Go to the download page for 2.0b to get the download link and more info on this rom.