Apple started shipping the new wireless and wired keyboards, specially optimized for the new OS X Lion.
In the refreshed keyboards the F3 and F4 buttons have been updated.
The new Lion only features Mission Control (F3) and Launchpad (F4) will replace the Expose and the Dashboard keys on the two keys.
It should be noted that within System Preferences in the Keyboard Shortcut section, one can easily assign a dedicated key for Launchpad. The downside, of course, is that assigning Lauchpad to F4 is not possible since that key was previously used by the Dashboard Widgets. So for now you’re stuck using the next best key, F5.
Unfortunately there’s still no sign of having a backlit wireless keyboard. Too bad.

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