Thank you BitTorrent Sync Alpha Tester, since I can reasonably assume you work for the company, I now have all the information i need. This application is Closed Source Proprietary, which means there will never be a chance that i can 1) be sure it has been vetted by Open Source Developers I trust 2) compiled by the Distribution developers I trust 3) available under a Free Software License, so that developers I have learned to trust can improve it. I am actually very happy to pay good money for Open Source Software. I used to Buy the paid for version of Mandrake (Mandriva), in fact the first version of linux I ever used was a commercial distribution. I donate to other open source (Free Software) projects, and encourage other people to do so. But No matter how good the developers of a closed source proprietary application tell me their software is, experience (20 years as a Windows developer, before I retired), tells me NEVER trust those assurances, They want to place you in a position where you will have to keep paying and it will always be more expensive to move to the better solution, than it is to put up with the current solution's failings. My recomendation is wait for an OpenSource (Free Software) licensed Bittorrent sync application, or if you can stasrt writing one.
