Sony will do very well in 2009. fact.

[Groucho]

Sony does, supposedly, have a very large number of cool exclusives coming in 2009, in addition to all the crossplats coming to the X360 as well:

Exclusive BD games (2009):
Killzone 2
Ratchet & Clank Future 2
God of War 3
Gran Turismo 5
Heavy Rain
Infamous
Jak and Daxter: Lost Frontier
Twisted Metal PS3
Uncharted 2
White Knight Chronicles

Exclusive MMOs(2009):
The Agency
DC Universe Online
Free Realms
M.A.G.

PSN:
Fat Princess
Flower
Ragdoll Kungfu
Dark Mist

The coolest thing about this exclusives list, is that many of these titles are 1st party... and if history tells us anything, Sony's 1st party development is usually excellent.  Microsoft has played the "we're holding our cards" move, but I'm sure they must have more than Halo 3: Recon, Halo Wars, Ninja Blade, and Alan Wake exclusives coming.