I really like Microsoft Live applications specially Live Messenger, Live Writer and Live Photo Gallery (for it’s panoramic stitching and face recognition like Picasa 3)
They all are free to download at the new(?) Microsoft Live Download site.
One interesting app is the new Live Movie Maker, I guess it’s an upgrade of the bundled Movie Maker in XP. There is also Live Mail beta which allows you to access all your e-mail accounts are in one program, may it be Hotmail, Yahoo! or Gmail. I have yet to try Yahoo! Mail access as I may have to have Yahoo! Plus for it to work. In case it doesn’t work on Yahoo, you can download Yahoo! Zimbra Desktop (very useful app)
Just sharing to all! :)