Riding along with your buddies and one of them says, "Hey, your tires look a little flat. Why don't we stop so we can pump them up?" You reply, "Nah, Everything is cool and press a button on the fly." It seems that can now be the case. There is a company that has modified Hummer Technology for the average bicycle. Ok, no button yet, maybe later. The company is Nakano Iron Works and the product is the Nakano Air Hub. Definately needs a better name, maybe SRAM or Shimano will buy them out.
Nakano Air Hub