Last night I attended the March VanJS meetup down at Harbour Centre (it’s outgrown its usual venue at the Network Hub across the street). Allen Pike from Apple gave a great presentation on Mobile Safari, complete with awesome 8-bit slides (and good information, and some iPad tidbits to boot), and David Flanagan, author of JavaScript: the Definitive Guide gave an amazingly in-depth presentation on all the new stuff in ECMAScript 5 (slides).
The best part, though, was Scott Ward’s surprise musical presentation of his song, IE is Being Mean to Me.