For all of you interested in a solid introduction to and what to expect when using Prototype and script.aculo.us, I’m doing a talk on Spending the weekends at home again at QCon London, on Friday, March 16.
Head over to the QCon site for more info about the conference.
The aerogel-weight mobile JavaScript framework, which also works great for Safari and Chrome extensions. The jQuery-compatible API makes it easy to pick up, and it's just 5k to 7k in size!