[boltjames]

1: Split-screen off
2: Split-screen on, arrow mode
3: Split-screen on, entertainment details.
4: Radio, Station WFAN from Presets list.
5: iPod, Play Last Position
6: Nav, Route Information
7: Nav, Cancel Guidance
8: Nav, Start Guidance Home

Buttons 1-3: I do a lot of driving with the nav and like to have a quick ability to toggle between full screen and the two most important split-screens.

Buttons 4-5: I like having one-push access to instantly start one of the three input modes. Prevents the need to hit "Radio" and then scroll down to "Satellite" or "AM". Same for iPod.

Buttons 6-8: The three most important navigational commands.

Shortcut Keys that can't happen (yet should): iPod Playlists, Traffic Alerts.

BJ