What are your thoughts on integrating your app into Facebook?

Yesterday Facebook accepted my application ScienceHack into the applications directory. So far, it’s been a huge success, I am getting great exposure to my target audience and every time someone adds my application, many more come through the friends feed feature. If you have a start up don’t hesitate to integrate it into Facebook.

What are your thoughts?

I suppose if it isn't too much work, why not. While you are at it, also write some widgets for OS X, Google and Yahoo?

However, this is the third link today that leads me to the facebook login page. That sucks. Why do you have to login to see the available applications? I don't have a facebook account, so, whatever...