Firstly I pray God's blessing on Logos as a company, and that it has a healthy future.
But as I see it from what I read, should Logos ever fail as a company (sorry to raise it, but we dont know the future), v4 will useless, with no cloud and no offline install due to no local licence synchronise (enhanced security), reinstalation will be impossible..
I have spent a lot of money over the years on my libary, and to think we might be heading down an path where that investment might turn to vapor, and I can no longer read my library concerns me greatly
So I guess I better make a virtual harddrive with v3, and ie8 on it, and not throw my cd's for version 3 away, just in case..