open question and answer thread

I haven't done one of these in awhile, and it's a quiet week, so ...

If you've got a question for me, go on and ask it.  If I've got an answer, I'll share it.  If I don't have an answer (either I don't know or can't say), then I'll tell you that too.  Questions about MacBU, our applications, Mac development at Microsoft, what it's like to work here, my job, and anything like that are fair game.  Short answers will probably go in the comments, long answers are most likely to show up as a new post.