Coolio Atoolo - web based desktop with 1 GIG space

I was checking out some mind mapping sites online and one mentioned that they were now integrated with atoolo. I thought "what's atoolo?" and went to check it out. It looks like a reasonably well done web - based desktop site that gives you a whopping 1 GIG of space to work with. If you've seen one web OS emulator you've seen them all, but this one has an interesting model for making money - the ads appear under each window in a relatively unobtrusive way, and hey, you can't beat 1GIG of free space.