I have to agree. I think Plasma 5 delivers the best UI/UX available on Linux today, and in many ways exceeds what the Windows and OSX worlds have to offer. This was quite surprising since I wasn't a big fan of the KDE 4 user experience.
I agree, and am pleasantly surprised by how well Breeze seems to adapt to a phone interface.
I'm hopeful that Visual Design Group will have polished the UI/UX even better for the phone form factor, by the time the distribution becomes stable.