I persist my infoguilt in the form of starred Google Reader items. Depending on their worthiness/boringness ratio they can sit in that 'starred items' list for weeks until I finally unstar them.

Anyway, this looks very cool. I do have a slight concern that I'd want to put things in these folders other than webpages, which I suppose means that I want the facility to be 'bigger' than the browser, but it just isn't comparable to using the existing features of a window manager as a lot of people seem to be claiming. Perhaps if I want to take notes and add them to a group, I need to put those notes in the cloud.

Also, could this be the start of Mozilla Firefox OS?