I've got all of my music, videos, etc. stored on a RAID that's connected to a single computer at home. However, I still travel and work with a laptop, and I occasionally want to, for example, put some music on the laptop to listen to at work. In order to currently do that, I have to have the full version of iTunes installed, I have to connect to the RAID over the network, and I have to copy songs from the RAID to my iTunes library on my laptop, duplicating the file; for songs that I purchased from iTunes, I have to authorize my laptop.
What I want is for my laptop to be treated just like the AppleTV over my wireless network: I want my laptop to show up as a device that I can manually manage content on and to which I can synchronize content. I don't need to be able to access the iTunes Music Store on my laptop as I purchase all of my content on my main machine at home.
What I guess I am looking for is iTunes "lite" -- simple software with a smaller footprint on my machine that allows me to treat my laptop as an iPod through my main machine at home. I want the iTunes lite to allow me to play DRM content and I guess it would be ok if it still took one of my DRM licenses. There is no need for my laptop to be able to stream content like my AppleTV; I just want to be able to move some content to my laptop and update it from time to time.
Maybe there's already something like this, but if there is, I haven't seen it. Some of you might say that there is something like this and it's called a Video iPod, but if that's your response, then you either are missing the point of this post or I am not explaining it effectively.
Oh, and while I'm thinking about it, here's something to chew on: iTunes obviously has the ability to recognize and synchronize content over wifi as evidence by the AppleTV functionality . . . and doesn't the iPhone have wifi?