Twiddla – real collaboration in real time

[sitethumb://www.twiddla.com] The website says: "Mark up websites, graphics, and photos, or start brainstorming on a blank canvas. Browse the web with your friends or make that conference call more productive than ever. No plug-ins, downloads, or firewall voodoo - it's all here, ready to go when you are. Browser-agnostic, user-friendly, mom-approved. Oh yeah, it does one-click audio chats too." Sounds great, doesn´t it?