Nintendo's Shigeru Miyamoto wasn't the only game developer checking out the competition, the folks behind Gran Turismo did as well — getting up close and personal with Forza 3.
According to Forza 3's Turn 10 Studios Blog:
Perhaps the most surprising to me was when a couple developers from Gran Turismo makers Polyphony Digital came by to personally get hands-on with Forza 3, all the while taking careful notes, examining our UI system, shooting photos, and directly asking us some pretty interesting questions. The reason I say I was personally surprised was because PD aren't generally known as a studio to acknowledge that there are racing games that exist beyond their own. Which could explain why the GT franchise has been so stagnant in the racing genre since GT3. So it seems competition is good for the consumer after all.
And good for Polyphony Digital and Gran Turismo, too.
The Road to October: Looking Beyond E3 2009 [Forza Motorspot Thanks, Matt!]