I thought it was strange there were so few new features appearing on TypePad and the announcement about Project Comet now reveals what SixApart have been working on. The focus on integrating blogs and community as well we being able incorporate other blogs into your own blog is very exciting.
TypePad has done an excellent job of simplifying really useful but otherwise effort consuming tasks like adding your Amazon wishlist with graphics to your site and I have high hopes that they will come out with some more killer features with Project Comet.
I can wait to see it go live (scheduled for early 2006) and give it a go.