I agree that we really gotta know more about it before I can get my hopes too high. One thing that intrigues me is how big that docking station is. That leads me to hope that maybe they're doing something like the Surfacebook, where the mobile pad has enough power to get the job done, but plug it in to the dock and the graphics get upgraded.
That would probably help save on the power supply. And I worry that it would get way too hot from just holding it if it went full power in mobile form.
Love that cartridges are back.
Edit:
Well nevermind, looks like all the power's in the mobile unit
http://www.theverge.com/2016/10/21/13356760/nintendo-switch-dock-functionality-tv-output-power