I registered, followed them and tweeted their message, but it still locked me out of the downloads. Hmm.
edit: Nevermind. Switched to Firefox and it worked. Must be because I have third-party cookies blocked in Chrome.
Looks like an interesting bundle overall. I know some of these games are already F2P/freemium games (such as Crazy Fairies), so I'm not sure what they're getting at with the crossed-out "$20" on all of them.
edit again: Oh, in-game items for the F2P games.