You may have heard that the Google Web Toolkit (GWT) makes AJAX development easier, but now we've made it even easier to dive into AJAX. GWT 1.2 supports development on Mac OS X. While GWT has always supported targeting a wide variety of web browsers and production systems, with today's announcement, GWT fanatics are now free to develop on the operating system of their choice.
So if you or a friend have an ambitious web application in mind -- especially if you're already familiar with Java development -- feel the AJAX love: check out GWT.