Want to get started developing your own WordPress Theme? Cool. My name’s Ian Stewart and I created this theme—it’s called Shape—just for you. Take it, copy it, mess around with it, and hack it up. It's licensed under the GPL, just like WordPress, so you can do what you want with it.
Download the Shape Theme from the Free WordPress Themes Directory.
Of course, a link back, or two, is always appreciated. But what the heck, it's up to you. And, oh, don’t forget: Shape is going to get better. Keep watch and get the ThemeShaper RSS feed. I'll post major development updates there.