Samsung Galaxy Tab for $399 on T-Mobile? (Android slate tablet)

According to several reports, it appears like Samsung's Galaxy Tab (slate tablet running Android) will be available on T-Mobile for $399. This is a 3G slate that can also function as a phone (but I doubt people will carry this everywhere and use it like a regular phone). I'm guessing that the Galaxy Tab is also coming to over networks other than T-Mobile. Let's wait to see!