But it currently only imports coarse data, e.g. your average heartrate on a given day. Not the granular minute-by-minute information.
Sleep statistics currently aren't imported at all.
I sold my Fitbit for a Garmin in the last month and the importer really didn't do much. Fitbit only gives 31 days of data.
open source and reverse engineers assemble
If only we could get a sense of how many people would actually use such a thing. I've got a feeling that 97% of FitBit users don't care, but if enough of them did then it could be a potentially profitable(albeit short-lived) piece of software.