Microsoft is announcing a new tool called Popfly today. It will be a lot of fun to try out this weekend.
Popfly provides pre-built, net-connected modules that you can use to create mash-ups, gadgets and web pages. It's fun and easy, and there is a slew of tutorials available to help you get your first Popfly mashup or webpage up and running in minutes.
A community is also provided for non-professional developers to share their creations!
Today marks the release of the limited alpha. This is going to be cool stuff :)
Refer to John Montgomery's blog for more information.