He started several pages on Tricider (divided into classifications) that allow you to login and submit suggestions for future Tesla software updates. The key here is that not only can you vote on the features you want to see most, but you can also offer arguments for/against a particular feature, all in the same interface.
This is THE best way so far that I've seen for owners/fans to communicate prioritization to Tesla regarding future software improvements. And even better, you may find yourself browsing through the existing items and find something extremely useful but you just hadn't thought about it yet.
Please, take a look. The feedback from owners/employees is extremely valuable as we are the one's using the systems everyday. Yet the feedback from fans/future owners will be invaluable to Tesla as they continue broadening the feature set to where a possible owner is more inclined to purchase.