Summary: The phone app connected to the GL10 is not for iPhones. So I was not able to set up the bluetooth feature on my phone. Although I was able to use bluetooth from my computer it was drastically slower than connecting via a cord to the printer.
Summary: If you're expecting fine quality you're looking in the wrong direction. If you want something light to keep in your back pocket or messenger bag that can print decent enough photos and don't care if the scaling and color quality is imperfect, this is great. It works just fine with my Nikon D90 and Android phones. Sometimes we keep travel journals and like to print quick shots while still on the trip.
Summary: Printing is unintuitive. The mobile app is quite lacking. Printing takes about 60 seconds, but getting the app to load and send the picture takes about another 30 seconds. The sharpness and colors leave a lot to be desired. If it was faster at printing, this would be forgivable.