The real question is, why are there 400 _read_ messages in his inbox. Archive or delete, dude. At the very least having them out of your inbox should give you a better picture of the ones you actually have to go through.
No service, no tip. When you tip your server, you're thanking them for making your experience at the restaurant a good one, which goes beyond the quality of the food. Tipping someone for ringing up your order and handing you your food is a waste.
No service, no tip. You tip your server because they put effort into making sure you had a good experience, which goes beyond the quality of the food. Tipping someone for running the cash register and handing you your food is just throwing your money away.
You can finish it in 2 hours if you're playing on easy. Who wants to play it on easy? The game gets its replay value from playing campaigns with a group of friends, and the versus mode, where you can also play as the zombies. The single player is probably 5% of the game, tops.
Also, who gives a shit if this game has running zombies?
Thinking about returning my iPhone. Not really.