I remember playing around with the dev tools for Epoc32 - the OS that my old Psion 5mx ran, and it all looked so clunky and unusual that I gave up. Knowing that Symbian is derived from the old Epoc code kinda put me off using it.

Similarly, I've never really been attracted to QT, but thats probably because I've never bothered putting a GUI on any code I've written until recently. Now that I've tried that, I'm more inclined to go down the QT route as it will at least allow me to target GUI apps on Linux and Mac OS X. Not really too fussed about Symbian still.