This is an interesting one. Google is working on a tool to control your Mac from your IOS device. There seems to be a lot of activity in the area of direct IOS interaction with a Mac
such as Parallels access.
Logmein has their remote tool that allows you to log in to a Mac from an IOS device and control it and transfer files. This is one of the most cost effective tools from a company that specializes in remote access.
What is interesting though is this work going on for direct interaction of IOS with the Mac. To learn more about the Google solution read “Software to control a Mac or PC from iOS is coming from Google“.