Will online proofing replace email and FTP?

[creationflow]

For the last 2 years I have been discussing with people how they get their work reviewed and approved when the reviewer is located in another office.

Most of the people mentioned meetings, phone, Skype, FTP, emails, custom software solution… they also mentioned lots of complains… difficult to arrange a time to meet with other people, no log of what has been said, feedback is not accurate, clients never know where to find the latest version, I don't have a things-to-fix list, too expensive, etc.

We have been working for the last few years on an online proofing tool for images, videos and PDF files so users can upload files and let others annotate them using built-in mark-up tool (whenever the other person is available).

I'd like hear what you guys think... Is online proofing going to be the next big thing in the "getting accurate feedback" problem or email and FTP won't surrender?