After my sons accident I got a smart phone for the truck so I could be reached in a hurry, otherwise it stays home. Just set in my old ways I guess. 
Yes, I really want to want this, but there just isn't anything compelling. I've also been a huge Garmin follower, particularly for their running wrist devices. We've talked about my current solution before, and I've just recently upgraded it. Before, I had an iphone 4 in a waterproof battery case:Pretty unexciting IMO. You need a smartphone for the connected features, such as displaying weather radar on the map. And if you are already carrying a smartphone, then you have to wonder why you need a GPS at all, considering all the great apps that are available (most of them under $10).
Sad to say, I think we are watching the slow death of the dedicated GPS. There will always be a niche for these devices, but it is shrinking fast. There aren't a lot of people today who want to spend $400 on a device like the Oregon 700. Garmin is shifting their real focus to fitness related devices and other odd things like collars to keep your dog from barking, a connected bathroom scale and a baby monitor. And of course they also have their specialized aviation and marine devices to fall back on.
I wish Garmin would just accept that the world is changing and release a best-of-breed smartphone app. It would be trivial for them to do this from a technical standpoint. But they won't because of their dedicated device business.
I have spent literally thousands of dollars on dedicated GPS units. But I think I'm through. Happy with my iPhone and several apps. I also still like the Montana 600 which is around 5 years old but these newer models don't really offer anything I want.
With some apps (like the one I use, Gaia GPS) they have the ability to download maps locally so you don't need to rely on cell coverage. In fact, the one I use as my gps doesn't even have a cellular plan. I have the Topos, National Map, satellite, and even the "MAP" downloaded in advance.When visiting an area I print a map (which I laminate because I'm a nut), and depend on my iPhone with Google maps. What if there is no cell coverage? I have been in many areas of Wharton where my iPhone is uselss. I'm assuming a handheld GPS is still required correct? I've been thinking about getting one for some time, so I don't have to worry if I get turned around in a remote area.
I'm assuming a handheld GPS is still required correct?
You just need an app that allows you to store maps on the phone. There are many of these for iOS, but I have narrowed it down to 2 that I use regularly.
But if the device isn't connected, how does the app know I've moved half a mile north and 1/8 mile east?
The device doesn't lose connectivity with the GPS satellites, even if it doesn't have cellular contact. The maps that are downloaded in advance are georefrenced, so that when you look at the map, the GPS coordinates from the GPS are sent to the app, which then locates you on the map within the app. No cellular connectivity required!I guess I am trying to wrap my head around how an app on a cell phone, without cell or satellite connectivity, can determine my position and movements as I walk around the woods? I'm not arguing, I just thought that the concept of GPS was based on four satellites communicating to the device. But if the device isn't connected, how does the app know I've moved half a mile north and 1/8 mile east?

A number of years ago the FCC required that all cell phones be capable of providing accurate position data to assist 911 operations. I think they only required something like 100 foot accuracy, and that can be acheived through things like cell and wifi signals in most cases. So initially, some companies used these methods since it could be done with software alone.

I assumed that you were telling me that a dedicated GPS is NOT needed to determine my position in Wharton. If the takeaway here is that using a $10 app on my phone will essentially allow me to duplicate the functionality of a dedicated handheld GPS, then I would try that before running out and buying a handheld GPS (although I may still get one down the road). Waterproofing, shockproofing and battery life aside. Google maps did "offer" to download areas in advance, but i never utilized it. Thanks for the info Boyd.Absolutely 100% wrong.You just need an app that allows you to store maps on the phone.