Which Denon do you have? I noticed that the Apple app store has the new Denon app but it only works on xx11 series. I have to try to see if it even works w/ my 3310. I did find some home grown apps that are supposed to work w/ the xx10 series. Need to try those. Granted, this assumes you have some type of Apple iphone/iPad/Touch and it's not necessarily a full, all-in-one.

If you want a big remote, you could even go w/ the iPad and try something like an L5.

http://www.l5remote.com/

I'm also a Harmony fan, in fact, I just reprogrammed my 659 to control a new Roku XDS.