User-made Content Part of Xbox Live 2.0?

The first details of the Xbox Live 2.0 service were revealed at the Game Developer's Conference by Microsoft VP J. Allard. Now GamesIndustry.biz has a discussion on the possibility that end user made content may be a part of the micropayment economy mentioned in the keynote. From the article: "...allowing players to create and trade their own in-game items, although presumably the game would have to provide some creative tools for this to be possible in the first place, so we wouldn't expect it to be a feature of every title."