Just wanted to copy here a message I posted on Snowl forum:

I think Snowl is a nice idea as a standalone tool - and could be yet another great demo of the power of xulrunner. But I'd love to see it adopt a more revolutionary UI, if I can say so. The three-panes model that so many feedreaders use gives a prehistoric look to a modern app. I have a few replacement ideas in mind, all using a canvas-based UI. Think of a clear blue sky, with clouds representing the feeds ; the size of a cloud - and possibly the altitude in the sky and even the colour of the cloud - is dependant on the number of unread articles and the age of the unread articles. It can sound crazy - and even be crazy - but I think there's a lot of room for innative UI in the context of an app like Snowl.