Cards (along with Intridea’s future Facebook apps) will follow a strictly no-slimy-tactics policy. Application installation is only required for sending cards, not viewing the cards that you have received. Ideally, we would be very happy to have a one-to-one ratio of active users to installed users, though we leave that up to the users.

Cards allows you to:

1. Send photos you’ve uploaded to Facebook as photo cards to any of your Facebook friends.
2. Choose from a selection of pre-designed greeting cards to send to any of your Facebook friend.
3. Submit a greeting card to be considered for inclusion in Cards. If chosen, your name will live on in Facebook glory forever!

We’re really excited about Cards, and will be rolling out new features soon. Stay tuned for updates.Cards (beta) is a sweet little app that lets you send your already-uploaded Facebook photos or designs submitted by other users as greeting cards through Facebook.

Check it out at:
http://apps.facebook.com/greetingcards