It's coming, but it's going to be slightly different from "Tweet to Unlock." It's against Facebook's Terms of Service to "incentivize shares" so we'll need a "Facebook Page Like to Unlock" app. This will also need to live on a tab on your Facebook page which complicates things, but we're on it.
WHERE CAN I SEND MY SUGGESTIONS?Shout them to me on Twitter @leemartin or send a nice email to lee@soundcloud.com
WHO BUILT THIS SITE?Resident experimental developer, Lee Martin
HOW DO I CONTACT YOU?Feel free to send over any bug reports and feature requests to lee@soundcloud.com