Garmin updates satnavs: Nuvi 2798LMT gets rear camera, Essential Series updates, HUD+ offers new app

Garmin has updated its Nuvi line of satnav devices at CES 2014, taking things large. The Garmin Nuvi 2798LMT has a Wireless Backup Camera. The camera can be installed on the rear of your vehicle so that you can see behind you when reversing and avoid...