In every new release I'm still stubbornly hoping for a few new features.
1. A new window management model. Cascaded windows don't do it for me.
2. 256 colors in Terminal.app.
256 colours will never happen. I'm stuck with either urxvt or settling for the SIMBL terminal colours plugin.
A new model for managing windows wouldn't be too far fetched though and I was really holding my thumbs during the talk. I shone up when they started talking about full screen applications but it fell kind of flat. Please Apple, if you're going to force me to work in 8 colours, at-least add a means to tile windows and navigate between them with sensible, configurable keyboard shortcuts! :)