Does Notification Center have keyboard shortcuts? Are there any keyboard shortcuts for controlling Notification Center on OS X Mountain Lion? Of particular interest is a shortcut equivalent of the Click to Tweet button that appears at the top of Notification Center (when the requisite option is selected in the Notifications settings pane), but if it happens to have other shortcuts (either predefined, or definable in System Preferences - I couldn't see any) those would be useful as well.
There is a configurable keyboard shortcut to open Notification Center:



Other than that, there seems to be no way to configure any keyboard shortcuts. The closest I could get is discovering that you can set Notification Center as the action for a hot corner. If you wanted to do this when a key is pressed, you can try combining this with AppleScript (like in this post).