The features will go live on 9 April, and will probably require updates for the Dropbox apps for Windows and other platforms.
Dropbox has long been paying more attention to their business customers than to consumers, but that makes sense given that the latter group is less willing to pay for what many companies, including Google, Dropbox, Microsoft, and Apple are giving away as freebies.
I can't speak for Dropbox's business services, but at this point there's no way I would get space on their servers. Google is a much better value, now that it has reduced their price schedule. And with Google giving away the first 15GB free, there's little reason for me to even bother signing in to my Dropbox account and access the free 2GB they offer.