I'm really confused as to what an airport device is and which products I need. I basically want to be able to print via wireless facility but do not have a printer that has that facility. Can anyone recommend a device or is it better to buy a new printer? Does Airplay permit your tvs to show what is on your ipad? Additionally, we have 4 iTunes accounts all synced to the main iMac which we then download. When updates are issued we are then prompted to key in everyone's different passwords. Is there an easier way around this without having to repurchase these apps books and music?