The day Mountain Lion came out, I installed it on my MBP (Mid-2009). And did it again on my significant other's Mini (Current). Instantly I found the new features to be helpful, and useful. However, unlike Lion, it feels a bit... Underdeveloped? There are somethings that I wish they had gone further with, that a OSX update would have expanded on in the past. Here are a few things that I wish would be updated with an iteration of Mountain Lion, but that we probably won't see until 10.9 (next year). --Ability to set notifications within apps like finder. In other words, when I'm transferring 12 GB of data to a server, while working on other tasks, I want to be able click a "notify me" button. --Airplay API/further Airplay integration. I use an app called PandaBar to access Pandora without Pandora's pesky Adobe powered app. Wouldn't it be nice to not have Airplay hidden? I want to activate Airplay in-app, rather it is a third-party app or iTunes, just like I do on my iOS devices. --Expanding on that, I have a set of Bose speakers plugged in on the Mini, why shouldn't I be able to use the Mini as an Airplay receiver? Apple has repeatedly blocked third party apps that reverse engineered this ability. I found these apps marginally successful at best, annoyingly unresponsive at worst. --Safari's new iOS inspired tab viewing is brilliant, but, like spaces, I need to be able to rearrange them to help my workflow. --Ditch the popups and make it a notification that sticks. When my battery is at 10-percent and the popup interrupts what I am typing, its annoying. Make things like that notifications that I have to dismiss to see them slide back into my notification bar. --Full-screen finder. Self explanatory. --Muting when I start dictation. --Call me a dreamer, but I'd like to see the return of dashboard. Much like your iOS notification center it could contain some very useful information. Allowing third party apps to put info in dashboard would be fantastic, integrating Apple apps (Reminders, iCal, Notes) would be even better. --Custom gestures. Not everyone will use them but making them available for those of us that would is a touch users won't forget. -Bad pun, sorry. SO, I could continue with my laundry list, but honestly I want to know what other users think. What feels half-baked in 10.8?