There was a Garmin 796 recommendation for those who don't have iPad. Given the $1500 price difference, what makes it stand out versus iPad + foreflight/wingx?
I come from 30 years of Industrial Automation experience. In that world there are specialized, hardened devices for controlling critical processes. I have seen numerous attempts to accomplish the same functionality with personal computers and the like. They can be made to work and work well, but they do not have the reliability factor of controller technology that is specifically designed for the purpose.
That said, the IPad is not specifically designed for use as a specialized technology for gps navigation. The GPS systems seem to be designed for the purpose, from both a hardware and software standpoint. You don't have to go to the level of the 796 to enjoy such specifically designed technology. There are much less expensive units that provide such reliability.
I use an IPad and Foreflight, and did it with more confidence before a friend of mine told me about an experience he had with his IPad last Summer. He stepped out of the plane for a few minutes for a fuel/restroom stop. The IPad quit due to an overheat situation. His Garmin 396 that was setting in direct sunlight never hickupped.
This is antecdotal, but very telling. I love my Foreflight and IPad, but I keep a chart at hand and am always making note of the heading that I need to fly and correlating my position with the chart.
Foreflight is great, but I think that using it for source of navigation without a backup plan at the ready could be a really bad mistake. Even backing it up with a handheld GPS, preferably with WAAS capability would be a good plan. Even using the chart for primary and the Foreflight for secondary might be a good plan.
Also, never forget that ANY of these electronic contrivances are susceptible to dead batteries, internal electrical problems, or could just fall off their perch and get broken. Given that flying can be a life and death situation, I think that a belt and suspender approach is warranted.
My $0.02,