Removing Gmail accounts from an Android phonet
This worked for me. HTC HD Desire.
1. Tap Gmail app - gives list of Gmail accounts on the phone. "Add account" button at the bottom - don't touch this!
2. Tap "Menu" then "Account settings"
3. Tap account to be removed. A "Data and synchronization" page comes up with "Remove account" at the bottom of the page
4. Tap "Remove account" and there it is gone!