I wish, I've never even had the chance to play it yet. But! I will cuz they announced yesterday it's coming to ps3!
As much as this would be an awesome game on the iPhone I'd rather see something like the Dishwasher which I havnt gotten to yet. There are already a couple of games that are on XBLA and the AppStore, namely Monkey Island. But I think if the dishwasher came to the appstore it would be an instant buy for me.
A Castle Crashers on Ipod Touch would be amazing ! It would be an instant buy for me anyway. We should ask the Behemoth teams to know if there would be a possibility that they bring the game on the iDevice.
They would have to license it. I don't think that will ever happen, even though that would be awesome.