In the first game, doesn't 6. Qf3 just win material outright? How does black protect the a8 rook?
Rich, the Trompowsky has nothing to do with this post. It can only occur after 1. d4 Nf6 not 1. d4 d5. And the King's gambit is only a possibility after 1. e4 e5. So I have no idea why that was brought up.
I've won several blitz games using a seemingly little-known line in the Queen's Gambit Accepted.
Continuations from this line usually lead to a lead in development for white. This coupled with black's isolated pawn on a7 gives white the advantage.
Here is an example of a blitz game I won, where my opponent made an early misstep trying to protect his "won" pawn.
So, keep this line in mind when you're white and facing an opponent who believes the queen's gambit is supposed to proceed like white's down a pawn.