This is pretty brillant - Yahoo is giving away tools and 'design patterns' for their look and feel. The more screen share that Yahoo's UI gets, the more comfortable the great masses of internet users will be with it.
For the average "little one-man shops who are just flailing about", this toolset is a huge productivity boost.
I'm so excited I'm gonna permit myself to post a closing reference to a song lyric, pseudo-Knuthian fashion:
Oh, baby you can walk, you can talk just like me. With a little practice, you can walk like, talk just like me. If that’s what you wanna do.
Thanks for sending me an angel Yahoo!