Foreflight is a great planning tool, cockpit reference........but the iPad is NOT a reliable GPS for navigation purposes. In a pinch, you could use it......but as a primary, nope.
I can't find any engineering reason to claim the iPad GPS is any more or less accurate over a Garmin.
VFR, both devices are secondary -- looking at the window at proper landmarks with a stopwatch, is primary.
IFR, neither are certified.
Please define "not as reliable a GPS" and the data utilized to come to that conclusion. That's very vague.
You also disregard the bluetooth and hard-wired add-on GPS options for iPad. Those provide alternatives to fix the perceived accuracy issue, do they not? They're incredibly cheap compared to the price delta of the Garmin.
A fully loaded 3G iPad plus external GPS is something close to $1000 lower priced than this new Garmin.
I can't find a value proposition that fills a $1000 gap. XM WX certainly, but not for $1000.
We'll see what the pricing is on the iPad for the XM hardware. It's supposedly coming, according to the official Foreflight release notes.
Subscription for XM is going to be the same. Garmin's update and chart subs are significantly higher than FF.
I see this new device as Garmin's attempt to morph into the "luxury" brand just prior to losing the entire low-cost end of their market sector.
Some people will always buy Garmin over anything else. Just like some people will buy Lexus over Toyota, even though they're assembled on the same line in Kentucky... and one has shiny chrome badges... they both do the same thing.
I think Garmin is moving heavily into brand based Marketing, and rapidly watching their tech lead dwindle.
I also see the ability to whip out my Phone and have a second copy of an almost identical version of Foreflight as a backup device for no additional cost, as a *huge* win for iOS.
Android solutions may be similar, with their tablets and phones... I don't know on that one.
I can't whip out a Garmin phone out of my pocket as a backup. That's a huge loss on Garmin's side. I feel, anyway...