Clarification about 2.1: Everyone read
To those of you saying you will unroot to get 2.1 and then reroot: THINK AGAIN. The exploit that allowed us to root our phones was patched DAYS after it was discovered. The reason we can still root our phones is because Moto/VZW never pushed an OTA update of the "fixed" 2.0.1.
Therefore, the exploit is NOT there in 2.1. So you will NOT be able to reroot.
Sorry for the excessive formatting but I saw at least 30 posts saying that they'll unroot, try it, and then reroot.