The next major version of Flash Player, which is currently in beta stage, will leverage APIs already supported in Mozilla Firefox and Internet Explorer to allow clearing Flash Local Shared Objects (LSOs) directly from inside the browsers.
Article HERE!
Where's the money, Lebowski?
The most recent version (10.2.159.1) of Flash Player will allow this function from here.
...but it'll get simpler when v.10.3 is released.
Vindicated