Well then, value is in the eye of the beholder. As shareholder, you are owner of a company share that is impossible to liquidate.
Patent value is arbitrary as of now. There has been no public number attached to the settlements (the closest we can estimate is "$900k for 60%").
Shares are immovable. Therefore, the only potential value to shareholders left over will be from a portfolio buyout. We will have to cross our fingers that a potential buyout partner will not be another "scam squad" deal. We have already relinquished 60% to our good friend Eyetalk anyhow.
Prove it! Alleged infringers choose to settle as it is often cheaper than the cost of lengthy litigation. revo chooses to settle because they have a 50/50 chance of losing in a full trial.