I have one in and have used it in the Thrush as well as my c-180. It is to the 496, what the 496 is to an old GPS 95.... The internal antenna works fine and "locks on" indoors faster than the 496 external does out in the open... There is an external antenna available for it, but for some reason it doesn't come with the unit?

It does have the "approachs" like the 496, and as expected they are easier to scroll through, activate, and use. Lots of folks think they could actually pull off using a 496 in the soup, I have had all hand helds go tits up too many times to trust them that far. In a pinch or as a back up maybe... knowingly going into the soup with any of these as a sole means, is russian roulette at best... I am sure the 560 will be no different there.
The resolution on the map and terrain blows away the 496, and the touchscreen works nicely, not like some of the cheesy telephone touchscreens... I really like the new mount and plug design. Not sure why the didn't incorporate the XM plug into the cool "one plug does it all" ? The yoke mount is the same lame one that the x96 series come with, but the "head" can be removed with 4 screws and screwed to your panel, making an Air Gizmo unnecessary, although I am sure they will come up with one for the 560. The 560 will be infinitely easier for people to adapt to panels as a "fixed" portable...
Negatives : The 496 XM antenna won't talk to the 560, I haven't activated the 560 XM antenna to see if it will get along with the 496, as I use that antenna in multiple airplanes right now. The battery life is way, way less than the 496. Unfortunately as cool as the 560 is, without a different battery program or a hardwire, it is a weekend warrior at best
