The heart of what it is -- the file system, the data model, the schema -- is basically in place. What I think will change, based on developer feedback, is some of the schemas will evolve, and some of the manageability functionality won't be in the product yet.

This is just the first beta that we have. We have more betas coming. Our delivery timeframe hasn't changed. It will still be in beta when Windows Vista ships.

The broadest audience we can reach right now is going to be on Windows XP. What we do longer term is a function of where the market is.

As a file system technology, it's important we get it right.