Hi
Thanks for your suggestion. We did very carefully consider allowing folder sync, but were concerned about the performance impact on the Repository if many people are querying for changed files at the same time without native, core support for a file sync service to lighten the load. There are also some "user experience" issues we were never really happy with - for example if one of your users opts to sync from Company Home and then wonders why their device has no storage left!
We are always interested in making improvements to the mobile apps so we'll go back and reconsider this feature.
Thanks,
Mike