Nokia Lumia 610 gets mounted but when I try to open the internal storage, it shows the following message:
Sorry, could not display all the contents of “Storage”: libmtp error: could not get object handles.
Installing libmtp or mtp applications from Ubuntu Software Center is not solving the problem.
I know this may not be exactly what you are looking for, but this was my solution to a similar problem; I've always had problems getting media devices to work with ubuntu via usb. My solution is to set up an ftp server on the phone/device and then use a good ftp client like FileZilla on your computer to access it. If you have a wlan at home then this works great out of the box. I don't know anything about Windows phones, but I'd be willing to bet there's an ftp sever app out there somewhere. It's actually easier sometimes to to it this way, no messing with wires, etc. I hope this helps.
I tried a fresh Ubuntu install and without installing any gtmp, mtp, libmtp tools, I was able to access storage and browse pictures. But not anything else. In a Lumia 610 either work with Skydrive or try using bluetooth transfer application for mp3, mp4 files. There is no other way, unless we get a Zune software for Ubuntu.
