Apple has released a timely update to their Remote app for iPad & iPhone - timely in the sense that AirPlay control of your Mac based iTunes library is now available from the couch over the holidays.
Add to that control over your iTunes on Mac Internet Radio Stations and Movie & TV Show rentals and there really is no reason to get off the couch over the break.
Thankfully this version also appears to fix the iPad bug that occurred when a password protected movie was started by the physical remote and you tried to enter the password using the Remote.app on your iPad.

I've been described as a lost technocrat or a wondering luddite, personally I just like everything that takes us forward.