Samsung did say it's ready to supply all US carriers with 4G phones, not just Verizon, and we may already be looking at one of those devices before us. Billed as a T-Mobile exclusive, the Vibrant 4G looks to be a gentle refresh of the current Vibrant handset, with the notable upgrades being the inclusion of 21Mbps-capable HSPA+ connectivity -- to speed your mobile broadband up into T-Mobile's definition of 4G speeds -- and a front-facing camera paired to Qik video chat software. The onboard version of Android is 2.2 and internal specs seem to generally match the earlier-released namesake. Speaking of the original Vibrant, these leaked docs also show it's sold over one million units in its time in the US and is the nation's best-selling Galaxy S variant. Great, now can someone please leak it to Samsung that Android 2.3 is already out?