I love wide angle photography. If the lenses weren't so heavy taken together, I'd carry my ultra-wide 10-20mm lens with me everywhere. I even appreciate the distortion the Sigm 10-20mm has on my Nikon because of the glass. It's fun but makes portraits a pain.
Also! Here are some of my favorite wide-angle photographers.. or, at least photographers whose photography I follow because of their wide-angle photography:
Donncha O Caimh (Dunkah O'Keev)
Lastly! Nikon S2 iPhone 4 sticker!