I say q-pon because my mom said it that way. I never thought it had anything to do with the letter q though. Maybe it's the glide-vs-no-glide thing which happens with a long u such as:

Toos-day/Tyoos-day (Tuesday)
Du-tee/Dyoo-tee (Duty)
Stoo-pid/Styoo-pid (stupid)
Nooz/Nyooz (news)
Lood/Lyood (lewd)

...except that the glide-no-glide usage follows some sort of East/West side of the Atlantic pattern, and this doesn't seem to. Now I have a question about this: it can happen with long u after N, D, T, L... Has anyone else seen this split with any other word following a K sound (a hard c or a k)? I can't think of any. (It doesn't have to be at the start, necessarily.) Fr'example, does anyone say jocular as jok-oo-lar or do we all say jok-yoo-lar?