Well like all great things, you invent the ideas and concepts NOW, then technology and cost scales down in the future and becomes viable. Take 3D computer graphics for example, they could do it back in the 60's, but it took weeks to render 1 frame of some simple looking, untextured shapes. Should they have given up on that useless technology? We now can render photo-realistic images within minutes.
I don't want multiple docking stations with multiple syncing/download schemes. I own 2 digital cameras, a PDA, and a cell phone. I want one platform where I can just put all this stuff on it and it takes care of itself.
Mark my words! We'll have this within the next 10-15 years. Hell, you'll even be able to put your cheque card on it and "refill" it with money.