More quests and content is added also in the current Korean version that we haven't had the chance to play yet in beta.

Gliding is actually quite useful when you find the two buttons that control up and down. Their default location is R and and F (or V) but I changed their key mapping for up and down on my numeric pad and that works better for me. Until I found this out I though gliding was pretty lame too, but you can go quite some distance with the up button..

:)