I'm fine as long as there's both GTK and Qt options. Among others. I prefer to write in C or Vala, but I see nothing wrong with hacking occasionally on C++ and Qt (got to learn it bit by bit), and I'm looking forward to nice Qt apps written by other folks (as well as any GTK apps they can churn out).

I for one don't agree with the 'written KDE looks bad in Gnome and vice versa' claim. I've always been using a mix of applications (on my desktop) written in everything under the sun (Motif, GTK, Qt, WxWorks, heck, even OpenLook, and more). Me happy still.