I recently purchased a new lens from Canon. The EF-S 10-22mm USM lens has earned a permanent place in my camera bag. Below are some sample pictures. Zoomed to 10mm you do get some distortion of the images at the edges like you'd expect, but that can lend some nice effects to your images if you compose well.
Since it's an EF-S lens mount, it will only work with the recent Canon digital SLR line up.