While I was looking for a neat MAC application which makes my network printers AirPrint compatible, I’ve found Printopia. This little application installs right into your  system preferences.

Just switch sharing on, choose your printers you want to share and you can start immediately to print from any iOS device like iPhone or iPad. Obviously, you should have iOS 4 installed on your device.

It’s available for 19.9$ at Ecamm