This is a good discussion. I have been wanting to streamline my cockpit choices for what works best, and been considering the options.
A few questions: Does the 696/796 have better mapping options than the 496? I have flown down the wrong canyon several times trying to avoid climbing above the highest terrain to get where i was going and just fly the canyons. The "maps" on the 496 are pretty worthless IMO.
The iPad with foreflight changed all that. The sectionals are great and give a pretty good idea of what the canyons and high points really look like, or pull up a topo app on the iPad and get really detailed mapping, All while showing where you are on the map.
XM vs. ADS-B
My XM has worked great (had those challenging customer service calls also) but it is reliable. I have woken up several times on Sunday morning deep in the backcountry to the sound of unexpected rain/low ceilings, with nobody around and no wifi/cell service to check weather. The XM is a lifesaver in these cases, to get a current TAF and start making a game plan for getting home. I "have" to have winds aloft, so the XM is pretty expensive each year all up. The "one time" equipment cost of the ADS-B is attractive, but you would be out of luck sitting on the ground stuck under weather trying to get a forecast/outlook. So, I have considered adding a sat phone, then I could call weather........or connect to the internet with the phone and my ipad to check weather. But, I hear the internet may be to slow to browse a weather site online? So, I have continued paying the xm subscription and using the ipad in the cockpit along with the 496 for navigation/weather.
I have been considering the ipad mini as of late. The full size ipad blocks the gear lights in one airplane I fly if mounted on it's Angerole mount, and gets hot if sitting on my lap and in the sun. I lost the ipad to overheating while navigating the same LAX VFR airspace emflys was in a couple of months ago......but, getting it out of the sun and inline with an air vent and it was back on line in a minute or two. Only happened to me twice in about 500hrs flying with an ipad, but you still need a backup (vor tuned in, etc) if you are in busy airspace.
Anyway, the mini should fit in the cockpit more easily.

