[craigerk]

The only one I know is this one. Other than that I don't know.

For the second one, it might already be there depending on if you have a custom rom or not.

Get rid of SMS Delivery acknowledgements (popup and text msg)
HKEY_LOCAL_MACHINE\SOFTWARE\OEM\SMS
change “delivery ack” from 1 to 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Inbox
click on “Inbox” then Edit, new key. Name the new key “Settings”
Click on “Settings” and then edit, new string value. Value Name should be “SMSNoSentMsg”, Value Data should be “1″.