Just a quick little heads up to anyone who relies upon MobileMe, as the service will be down for maintenance overnight from 1am to 3am ET. Downtime is never fun, but it’s sounding a lot like when Apple’s engineers are done with the update we’ll finally see the beta label shed from the updated webmail portion of Me.com. That, and the release of a Find My iPhone app for devices running iOS 3.0 and up.