Those of us who have paid for privacy in the past have learned to ask two questions:<p>Am I going to get the promised privacy, or can the Terms of Service change at any time? And perhaps even strip privacy retroactively?<p>And is the thing going to work otherwise, or is it going to be like a certain well-respected privacy product that blasts my eardrum with a maximum-volume DING whenever I use it? It's a detail, right, but more than a little off-putting.