ABBA Singbox: An iPhone game that lets you sing ABBA songs alongside Frida and Agnetha, while Björn and Benny do their thing. The only way life could get any better than this is if actual Swedes were singing besides you.
Because, trust me on this one, nobody - yes, nobody - sings like drunk Swedes. The $4 official ABBA app comes with Dancing Queen, and you can buy three other classic - Mamma Mia, Gimme! Gimme! Gimme! (A Man After Midnight) and The Winner Takes It All - for $2.49 each.
Expensive, you said? Shut up. It's fucking ABBA! My Swedish meatballs predict that this application will be number one at the App Store this Christmas. [iTunes App Store]