There is a leaked version of 2.1 for the Eris posted over at XDA. There was some trouble getting it loaded up but there is a member of the Dev team that says it is loaded and running. I will be loading it up shortly and I will report back.

****This is not the OFFICIAL VZW upadate!! You really should only try this ROM if you are willing to break your phone and if you understand EXACTLY what you are doing. If you choose to put this on your phone it is YOUR fault if something goes wrong, NOT MINE*****

I will let you guys know when I have it up and running and I'll try to post screen shots. Of course cool things like this always seem to happen when I'm right in the middle of writing a paper!

As soon as a fully patched update is available I will post a file or a link. The reports are all good so far.

source:  Droid Eris Forum