You can reorder your credit cards in the app if for some reason you prefer one card over the other, change the reward values if there's an error, and connect to Foursquare for quick check-ins.
On the web, if you connect your cards' banks to Wallaby, the service will analyze your spending and recommend credit cards that might be a better fit. This is totally optional, though, if you prefer not to connect your accounts.
Finally, Wallaby also has a pretty interesting and exciting product coming up: The Wallaby Card. This "one card to rule them all" connects all the credit cards you own, so when you swipe the Wallaby Card at a merchant, it will automatically charge the most rewarding credit card—no effort needed on your part. You can also lighten up your wallet and carry just that one card...when it becomes available, that is.
Right now you can pick up the mobile app for credit card guidance on the go.