But not for the reasons you're probably thinking!
When was the last time Sony struck it big on a game title and sold over 5M copies outside of GT? How many titles has Microsoft published which have sold in excess of 5M copies outside of Halo? Its not a pretty picture is it? Third parties are good for sustaining momentum, but they can't be expected to ignite it. Even if a third party makes a 5M+ game the chances of it also appearing on the Wii or the other HD system are >70% for simultainious release which means any momentum from third party games will be shared amongst all systems.
So Microsoft/Sony will have to create the momenum themselves. However the chances of this actually happening given their past record is pretty slim and thats with 100% focus on the interface. However they are also distracted by the need to still publish games using the regular controllers which means they cannot assign their best developers to making the games designed solely for their new interfaces which have the best chance of success whilst at the same time Nintendo doesn't face this dillema.
Tease.
