Although you could buy a low-end AirPrint-ready printer for the same price, Lantronix's xPrintServer Home Edition ($100) will allow your older, trusted printer to communicate with iOS devices. It's designed to be a plug-and-play setup: just connect the small white box to your router with the included Ethernet cable, then plug the printer into the USB port. xPrintServer will automatically discover the printer and it'll be ready to wirelessly print…