I've been developing Facebook Connect applications for a long time, and I'm wondering - hasn't facebook had this feature already for email addresses?

One of the permissions read: "Send me email" (optional: send through a facebook proxy)

So now, you can also let the apps know phone number through the graph? I don't find that too big of a step. CAN-SPAM still applies. Perhaps they should set up proxies for the phone number, though.

What I find more funny is that ReadWriteWeb writes:

"Thankfully, this sort of information cannot be shared via your friends' careless actions, unlike other profile information."

which is in direct opposition to the attitude that blogs had on the same issue when Google complained that facebook was "trapping your contacts" by not letting you export them. Now they are thankful facebook doesn't do this :)