Click here and pick a version to download.

Please keep in mind that this is a preview edition, there will be bugs and it may stop working at any time. Still, if you are into this type of stuff, want to be on the cutting edge, download it and play around with it to see what's coming out around the corner.

The top things I'm excited about:

Fast sub 10 second boot times.
Tablet features with touchscreen and pen.
System refresh without deleting any of your documents.
New task manager.
Share charm = allows you to share whatever is on your screen with anyone in your address book.
Performance gains overall.
Xbox live integration.
New start menu and UI.