First John Lam announces Iron Ruby, to be released under something called the Microsoft Permissive Licesnse. It's basically a rebranded Apache license -- and honestly, seeing that stuff on a Web page with an MS logo had me envisioning some alternate-reality Steve Ballmer with a full head of hair. (Remember that episode of classic Trek where Spock has a Fu-Manchu-style goatee?)
Brendan over at Mozilla piled on by announcing a slew of fun new stuff -- it's an um, barrel full of new monkey-projects (sorry, couldn't help myself) over at Mozilla: ActionMonkey, bringing all the Adobe-donated Tamarin-goodness into the JS engine for Mozilla 2, IronMonkey, making use of the above-mentioned Permissive License code to make Tamarin multi-lingual (Ruby in the browser, anyone?), and ScreamingMonkey, a project to bring Tamarin to other browsers such as IE. Holy crap, that's a lot of what it is, all in one announcement.
Good stuff. Looking forward to seeing how all these projects progress.