Live-blog: Microsoft Surface tablet computer revealed

The cat is out of the bag.

Microsoft's "major announcement" is a tablet to compete with the Apple iPad and others. The "Surface" will weigh about 1.5 pounds, have a full keyboard on its surface and use the Windows operating system.

"It is a tool to surface your passions and creativity," company officials said during a Los Angeles press conference.

ABC's technology editor Joanna Stern and Yahoo!'s Scott Ard live-blogged the event. Check out the chat player below for details on the announcement.