Hey Mike,

I started using a Surface Pro 4 with Expedition about this time last year. The experience has been decent, with pros and cons to be expected. It is in a waterproof case, which means no keyboard attached. I am using a Moxa NPort, with one port for B&G and one for the GPSMAP. This feeds into a wifi router, so the computer can be used anywhere on the boat. I use an Iridium Go for data.

The computer spends most of it's time on a wall-mount, and in my hands on deck when navigating shallow waters, start and finish, etc. The battery life while running Expedition is about two hours at best.

I'll be shopping for a bluetooth keyboard with a track pad. Using Expedition with only a touch-screen is cumbersome. No fault of Nick's - there are just way too many features that would be dumbed down if optimized for touch only.

I'll definitely also be experimenting with Ventus on a cell-phone. The Surface is a bit small for nav-station use, but too big to be functional on deck. If I did it all over again, I would probably use a bigger laptop in the nav, and a smaller tablet on deck.

Hope this helps!