I feel like such a n00b - I've always pronounced it to rhyme with 'say-ferry' .
DOH! - Toby
It's not just that you got to call it "j" and then "query". And it's not just that the word query is hard to pronounce on its own: say "kweer-ee" really fast. You sound like a Disney character. The reason is that no one knows it means. Of course us techie's do. Mootools is a silly name but at least you a) can pronounce it and b) know it's some kind of tool. I'm not suggesting a name change, just pointing out what I think will hold it back.