Some great news this morning from the guys over at Adobe. There is now an ActionScript 3 API for Facebook on Google Code. This is an official API and Adobe have included a new section over at the DevNet purely for Facebook.
This is fantastic news for all those people developer apps and widgets using the Flash Platform. Daniel Dura has a quick introductory video tutorial on creating your first Application using Flex Builder on the DevNet.
Another written article on the DevNet takes you ...