I agree with Darryl, I absoulutly love foreflight and they have added a glide amoeba which in the 170 I fly in it with, is one step closer to making it something I would put in my 27. I admittedly have only a garmin 196 and a SN10B for my 27 now and have not flown with a clearnav or lxnav. I have flown with xc soar on a android But I would replace my 196 with a Ipad mini running foreflight now if I had the room.