I signed up just to agree with you. That Waddizzle is such a piece of work, very hostile and unhelpful. I could understand your issue from the very start, but possibly because I was having the same problem: the images show as having GPS in the Canon app, but there is no valid GPS data in the EXIF, no matter how you transfer the images. I've had plenty of experience viewing EXIF data (I've even written EXIF parsers myself), and no app, including Adobe ones, can't extract valid Lat/Lng info from the files.
Here's what I found, speaking as an Android user. When you first install the Canon app, you only get the option to allow location access either Never or When using the app. In order for the app to be able to access location info even when it's not active (i.e. the app you're actually using), you need to go into the app's settings and change the location setting to Always. (You can do that in the Canon app using the Functions tab -> Location Information tile.)
Once you've done that, before you start shooting, go into the app and make sure it's connected to the phone. (If, like me, you put the camera into Airplane mode before powering it down for a long time, you'll need to turn Airplane mode off, too.) From then, it should be possible to send the app to the background and still have it send location info to the camera, though it didn't seem to be 100% successful in my tests.
I don't know what the equivalent steps for an iPhone would be, sorry!
ETA: Another thing to notice is that if you show the complete shooting information on the camera's display, the GPS icon will flash if it's not receiving valid data from the app. In this case, just launch the app again and it should stop flashing.
