The Kaloki game seems fine, but it also seems to have been the culprit, though perhaps an innocent bystander - not really sure - of the first hard crash I've had on my iPhone 3GS. I've had it since they were pretty new and it's never crashed on me like that. That is screen suddenly went black and I got the Apple logo for what seemed like an eternity, though thankfully eventually it did finish starting up. I'm not sure if I'm going to try the Kaloki games again or not. I suppose apps shouldn't be able to completely crash the system, so maybe it wasn't really at fault, though.