It would be great if Zwift integrated with Dropbox. First request would be to automatically upload the .fit file to Dropbox upon completion of a ride. I know it is saved locally but if Zwift is run from multiple devices (i.e. laptop, phone, tablet, etc) then the files are not centrally located. Having all of the files in a central repository provides a huge amount of convenience (e.g. GoldenCheetah, etc).
Additional integration options could include a central repository for custom workouts if not using TrainingPeaks (upload and download). Thanks!