Quoting Scott Hanselman:
I was hoping that it would happen but I never believed that Microsoft would involved themselves in OpenSource library. But luckily I was wrong. ScottGu writes:
It seems that Microsoft is really starting to turn their ship towards Open Source, it is great to see that they did choose best technology for developers.
Scott Guthrie has announced the “Atlas” 1.0 Naming and Roadmap, which includes the news that Atlas 1.0 will ship around the end of this year, that it will become “fully supported” by Microsoft.
Now that the Rich Internet Applications are getting more and more popular, just like any other environment we are getting problems from the bad guys. Now that the door is opened publicly there will be lots of crackers crawling through AJAX codes and finding holes to insert their own little exploits, this of course means that more security problems like the Yamanner worm are along the way.