Whidbey Gotchas
So far, developing in Whidbey has been great, with one gotcha that I've seen so far. I have a windows form, with 4 textboxes, 4 labels, and a couple of buttons. Clicking on one of the textboxes, entering “Edit Properties Mode,” and changing the text property gets VS stuck in an exception loop.
Longhorn seems to have a memory leak in explorer.exe that may only get bad during the default screen saver. (~900mb after 4 hours of non-use)
So, this does not take anything away from the products in this early stage; this isn't a bash. It's best to know about the issues as they come up.