I was watching a Google video (http://video.google.com/videosearch?q=Designing+Next+Gen+Web+Apps) about designing the user interface for web apps and it talked about Measure Map (http://measuremap.com/).

It looked like a pretty neat product, but when I tryed to examine it more closely, it would't let me register.

I have some vague ideas about why they wouldn't want me to, but from a business standpoint, if someone is inquiring about your product shouldn't you want them to be able to?