Sun has a new bet for the end user desktop Java Desktop System. Interestingly, since this is Sun, the product is based on Linux instead of Sun's Unix variant. I have a hard time seeing this succeed though. It appears to offer nothing not already on offer from other vendors, except maybe some Java gunk thrown on. The particular combaination of development tools doesn't look like somethign anybody but Sun would want to target, and then this is just Sun's own distribution of Linux with a heavy Java add-on.