Two quick point relating to Windows Live:
- If you have an interest in Windows Live I'd recommend taking a look at liveside.net if you haven't already. I recently met up with a couple of the Liveside guys and they are incredibly informed about Windows Live and post useful content on a regular basis. In particular, it's worth taking a look at their developer blog which contains plenty of useful advice and info on building applications on Windows Live.
- I also need to make you aware of a great new site "Via Windows Live", produced by Dr Neil of Via Virtual Earth fame. Neil is one of the most switched on developers I've met in a long time, and his new site is really shaping up to be something special. Definitely one to keep your eye on if you have an interest in making the best use of Windows Live services in your web apps.