Maybe it's not exactly the same as, say, Symbian to WM, but after giving up my MPx220 (WM2003SE Smartphone) for a Pocket PC Phone (and then another Pocket PC phone after that one), I thought I could never go back to a WM Smartphone device.
But I, like the OP, was drawn to the irresistable Moto Q9H. It had everything my Pocket PC phone did (minus the wifi, but I got 3G in its place and a better camera) in a smaller package.....and I'm never going back to touchscreens
My Pocket PC phone made sense at one time, but in my life now I don't have time to deal with touchscreens (and the screen protectors and fingerprints that go with them).