Here are some suggestions which i think will be very useful for everyone.
1# Import Cardboard profile from the Google Cardboard app, so that the time taken to setup lens correction is eliminated.
2# For SteamVR tracking add FreePieIO + Phone so that your FreePie scripts don’t interfere with the standard head tracking method.
3# Add a native button mapper so that you can use a mouse/controller as a Vive controller
Thats about all the suggestions i have for now.