I kinda wish GW made a companion app for tablets. Register your armies, set up an engagement, and the armydiscombobulator will guide you through each battle you indicate, remind you of important rule sets, roll dice on command, and allow you to check up on your units on the field, in reserve, and everywhere else they might turn up. All of this while wirelessly syncing the results with your opponent. Maybe even with a custom minimap built from a hasty photo from above, with custom markers and a small scratchpad for strategies and general info).
Sure, it would devolve the game into two nerdlings sitting across a table filled with minis, taking turns silently shoving said minis around, checking their tablets, and removing minis accordingly. Still, as horrifyingly boring as this particular example would turn out, I wish computers could alleviate the mind numbing number crunching part a bit. With the right balance skirmishes wouldn't need to be a major affair.
( Still astounded that GW haven't started putting NFC chips in their kits. Especially with the skylanders and whatnot hype. Don't sneer. You would buy a simplistic model viewer app that allowed you to look at any single of your minis - in 3D, with custom decals and battle damage, backed with atmospheric backgrounds and garnished with some fluff and maybe a battle log. Custom base fills up with the remains of your slain foes! Automatically awarded service bolts, purity seals, etc! Tap for Teef! And so on...)