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What features would you like Tesla to add in future versions of the firmware?
One minor feature I'd like to see is for the Model S to recognize via GPS when I'm close to home or any other location where I have a HomeLink signal saved and bring up the window on the 17" screen to open the garage door.
Why stop there? When you're frustrated with the deficiencies of any built-in, paid for component of your Tesla just put it on a car carrier and drive that around.I'd suggest just using Spotify on your phones via bluetooth and not bother with the built-in Spotify.
Leave the car logged into the most used account... and then use bluetooth for the other as needed.