There's a three very big announcements from Adobe today that have really moved the needle forward for RIA developers.

First, a new version of Flex has been released, Flex 3. You can find Flex Builder 3 and the Flex 3 SDK online for donwload. Remember that Flex 3 is open source, under the MPL license, and with that comes some new sites to help manage the open source project. There's a open bug database online, and a Wiki with project details.

Secondly, Adobe has renamed Apollo to Adobe Integrated Runtime (Adobe AIR). There's a new release for this as well that adds in HTML / Ajax support, along with PDF (using Adobe Reader 8.1), a native local database called SQLite, and many more improvements.

Finally, Adobe has released a preview version of the next version of Flash Player, which includes a number of improvements, most which I don't understand. Check out this labs page for details on them.

There's a ton of coverage in the blogosphere about these announcements, especially about the renaming of Adobe AIR. Jay Fortner covers it at ReadWriteWeb, Ryan Stewart has a lot of great information, and Ted Patrick has some great insight and a ton of posts on his blog.