In OS X Lion, Apple introduced fullscreen support, letting users have apps in their own "spaces" - an incredibly useful feature, which pretty much all apps which got a full screen mode support.
Minecraft however does not support OS X's native fullscreen, which is a major annoyance for me. I would love to see this issue get fixed, and make an already amazing game even better.
Duplicate of MC-26102, please use the search function to see if your bug has already been submitted. Currently over 58% of tickets are being closed as duplicate.