Thinkature

This looks like a helpful web2.0 collaboration tool. Anyone else come across it? I like the mind-mappy approach the test site shows us. Thinkature - About Thinkature: "With Thinkature, you can create a collaborative workspace and invite coworkers, friends, and colleagues to join you in just seconds. Once inside your workspace, you can communicate by chatting, drawing, creating cards, and adding content from around the Internet. It's all synchronous, too - no need to hit reload or get an editing lock."