Based on enthusiastic reviews here and elsewhere, I bought Andrew Martin's Scandinavian DVD at the bookstore at one of the big open tournaments recently.  As I mentioned in another thread, I think this DVD is great for getting someone up and running in this variation in very little time.  I watched the DVD the night before the tournament, and felt confident enough to give it a try the very first game the next morning.  I thought I'd share the game with some comments.

1.e4 d5 2.ed Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6

The great thing about Martin's suggested line is that Black has a definite objective. He wants to achieve a setup with ...Nf6, ...a6, ...b5, and ...Bb7.

6.Be2

Martin calls this outwardly unpretentious, but the idea is to disrupt Black's plan of ...b5, which would now be well met wtih 7.Ne5.

6...Ndb7

This effectively meets White's "threat" of Ne5, and now Black can go back to trying to implement his favored formation.

7.0-0 e6 8.Bg5 Be7

Pretty normal stuff.  Now Black is ready to play ...b5, ...Bb7, ...0-0, and perhaps eventually an equalizing ...c5.

9.Bh4!?

This looks odd.  A common idea for White is to harass Black's queen with Bf4 (after preparation).  But does White really have time for the maneuver Bg5-h4-g3?  I figured that Black was simply one step closer to getting his standard setup.

9...b5

Why not? An argument might be made for 9...0-0, but 10.Bg3 Qb6 and Black has blocked his b-pawn.

10.Bg3 Qb6

The standard shelter for the queen in many of these lines. Now an idea for Black is to get castled and oppose the Bishop with ...Bd6.

11.d5!

I like this move.  It tries to take advantage of Black's lag in development and forces the issue.

11...ed

Any other move allows dxe6, and despite the computer's assessment, I think White stands clearly better.

12.Nxd5 Nxd5 13.Qxd5 Bb7

Developing with tempo.  It looks like Black might just be hanging on. But after

14.Qf5

White is still pouring on the gas.

14...Nf6?

Black is under some pressure.  He desperately wants to get castled, but at the moment his Nd7 would hang.  His c7 pawn is also a concern.  He would like to improve the position of his Nd7, prepare for castling, and keep c7 protected.  Thus, ...Nf6 is very appealing if he can pull it off.  I thought I saw a way to do this, but my calculation failed me. Instead, 14...Qf6, although unnatural (a knight belongs on f6, not the queen, right?), looks simple and good, after which I believe Black is about equal.

15.Qe5

White has other options, but this has to be the main candidate and seems very strong.

15...0-0

Still under the illusion that the pawn "sac" is temporary.

16.Qxe7 Rfe8 

I think around about here I realized my mistake, but did not see a way to bail out.

17.Qxc7 Qxc7 18.Bxc7 Rxe2 19.Nd4

Of course. After this White consolidates easily and went on to win.

Conclusion:  9.Bh4 is a curiosity, but is insufficient to cause real problems against accurate play.