Gamasutra reports that the Fall Dashboard update will land December 4th and bring a surprise or two with it:

More interestingly, the company has announced that with its latest Xbox Live update launching December 4th, Microsoft will kick off a new "Xbox Originals" campaign that will see the release of downloadable games for 1200 Points ($15) each.

Thus far confirmed titles include Halo, Psychonauts, Crimson Skies: High Road to Revenge and Fable, with "a growing catalog of Xbox games to download and own over the coming year."

I just bought Psychonauts, guys. Last week. Why do you do these things to me? Anyway, I can't wait to buy some not-Psychonauts Xbox games I missed out on, but how many are going to fit on my tiny 10GB hard drive? I'm betting the answer is few.