When Krazy Kart Racing hit the iPhone yesterday it wouldn't run on some devices. Konami told Kotaku today that they're hard at work on a patch and shared a quick workaround with us.
If you picked up the $US8 app and don't want to wait for the patch to be abke play now, you can just disable your WiFi to get the game to run.
I've spent a bit of time with it and it's fairly fun, though the biggest draw for me is the ability to play in local and internet multiplayer matches. Something it looks like I'll have to wait for the patch to test out.