this is exactly what i was told by samsung and now i feel i can post it since i actually see proof.
Official Android 2.2 (Froyo) update emerges for Sprint's Epic 4G -- Engadget
this is the update news that we all got excited about but now look at the update to the "official" update.
Update: Looks like Sprint's not so fond of this here version, and is currently recommending that users avoid it. We're sure the "last minute tweaks' the carrier has in mind will actually only take "a minute." Right.