We do know that HP has slashed the price of its entry level TouchPad permanently to $399, and that the HP TouchPad 4G is already available for pre-order over at Amazon.com, so it makes perfect sense that you can expect to see the TouchPad 4G arrive at the FCC sooner rather than later if it were to materialize on store shelves. Well, having said, the TouchPad 4G has arrived at the FCC already, where the filing gives the game away with “TouchPad” written all over it, in addition to other labels which show “HSPA+ AT&T.” Guess you know which carrier is going to offer the TouchPad 4G, no?