Xara has added XPS support to the Xara Xtreme graphics editing software. XPS is a vector based graphic, that means that the shape is described in mathmatical terms rather than per pixel as bitmap images do. That means you can increase the size of the shape almost indefinately without it getting jagged.

Xara is worth a look if you do any kind of graphics work. The interface is very clean and doesn't really show quite how much there is going on in the background. I've used both Xtreme and the open source version on Linux and found them easy to get going with. It's also much cheaper than similar products from the likes of Adobe.

XPS still seems to be taking a while to get going since it was introduced by Microsoft. It is built into Vista but XP users will need to install some extra software to view and print XPS documents.