Already the rewrite has meant Quisition now supports OpenID for authentication as an alternative to a password. This has been a common request from users.
Also provided in the initial rewrite is the ability to edit and remove cards in a pack after the pack has been published. This was probably the number one feature request.
We have a lot more planned in the coming weeks, so stay tuned! If you have any feedback or suggestions, please make use of the Feedback tab to the left (another new feature we added during the rewrite).