[toomuchtodo]

I see a day when devices won't need GPS when outside; access points/cell towers can have precision/differential GPS receivers and your device's location is calculated using RF signal strength/triangulation data (802.11ac already uses beam steering for better reception/throughput). I'm aware this is already done using CellID and signal strength data; I'm simply saying it'll become more accurate and widespread.

If you can offload the energy hungry tasks, these devices become much more realistic faster.