Last time I looked, I couldn't find kio-mtp. Thanks for including it. Installing and using it gets me an option to open it up in Dolphin, but, like Fedora and openSUSE I get the "Your phone needs to be rooted" error. But, unlike the others, I can't get Digikam to download the pictures in siduction. It may be that they're on Digikam 3.2 and we're still using 3.1, or, more likely, I'm still missing something in the setup. I tried mtp and ptp with Digikam.
kio-mtp hasn't been touched since March. I guess the recent Google changes haven't been dealt with yet.
Or it might mean that libmtp needs some love.