I was looking around the internet just a few days ago for a checklist of the not so common tests we might do before submitting our games for review to the Community Games Channel. I came across this post in the XNA forums which is just what I was looking for. I recommend you bookmark it if you are planning to publish anything to the Community Games channel.
Credit goes to The ZMAN for this post – (Update) I just noticed that isnt TheZman’s post. Apologies to Spyn Doctor who did infact write the original post