For those who do not want to wait to be notified for the Mango update, you can try to follow steps described here (steps for forcing the NoDo update) http://blog.hametbenoit.info/2011/04/01/windows-phone-force-the-detection-of-the-update-nodo/
For those who do not want to wait to be notified for the Mango update, you can try to follow steps described here (steps for forcing the NoDo update) http://blog.hametbenoit.info/2011/04/01/windows-phone-force-the-detection-of-the-update-nodo/