One of the great features missing from the iGrid instructions is the router function. This is great if, like me, you have a tablet with no sim card in it or just have a WIFI only tablet.
With the router enabled, when you connect your PAW to the phone's hotspot (and its 4G connection) you now get 4G piped to your sim-less tablet. This means you can enable the 'use Internet in flight' function in SKyDemon and get updated winds, NOTAMs etc.
I know you can always connect the tablet directly to the phone's hotspot but the router function allows you to have iGrid AND have 4G piped to your tablet.
Maybe I missed it in the iGrid write-up but I felt it too useful for attention not to be drawn to it
