I have read many articles on here and elsewhere about how the notification light on the Htc Desire can only be green. However i stumbled across this accidentally. It can it seems be other colours! To witness this try downloading "handcent sms" and then changing the notification settings, and the light colour to blue or one of the others. Then send your self a text or wait for one and see that it actually has other possible colours!? Was this possibly a blocked feature by HTC? I have no found any other apps that this "secret" works with but i dont doubt that there are others. So far these colours work "Blue" "Pink" "Amber" "Green (default colour)" "light blue" (all of them listed in the app basically) Enjoy!