I use my Nexus 7 as a paper map: I have the Memory Map app installed, with copies of the ancient 1:50k OS map files from the desktop version. If I'm particularly organised I might upload a GPX with tracks and waypoints to it too, but I mostly let the eTrex handle that realtime / turn-by-turn stuff. The Nexus comes out at decision-making moments and gives me a nice backlit easily-scrolled OS map that happens to automagically centre itself on the crosshair that shows the current location.
Which sounds more or less like what you're planning to do. Now, I won't actively recommend the Memory Map app - it's a bit primitive compared to things like Viewranger - unless you happen to have maps that will work with it already.
I've also used OSMAnd with offline vector mapping. It's a bit more sluggish than scrolling around a bitmap map, but it has OSM's higher level of detail of features that are sometimes useful (cyclepaths and the like).