Hint: S&T is the less expensive of the two.
That's all a function of the skin, which can be customized.4 - Select which buttons to show on the home screen - Can you select what you want to actually use, instead of showing everything? For example, I wouldn't need the DVD or video player buttons. Mainly just Navigation, MP3, CD, and the Weather Add-in.
Another function of the skin.5 - Night-mode - Is there a button on the driving screen to switch back/forth between day and night mode?
You can do that with what you're using now, although the interface isn't going to be clean & polished like StreetDeck. You just need to get the audio signal into your stereo somehow and use a media player of some sort (WinAmp, Windows Media Plaer, FooBar, etc.)I currently use CoPilot Truck 9, which does a pretty good job. However, I'd love to be able to use the computer for playing mp3's and such while driving.