This has been discussed here before [webmasterworld.com...] but there is a lengthy article in the New York Times about the growing number of lawsuits over this practice. Adobe claims developers are misusing the flash cookies. [nytimes.com...]
Is Adobe trying to kill flash?
When they print stuff like this you wonder if the lawyers understand what they are going into court with.
The suit says that the information collected by the unique ID, using a technology called HTML 5, allowed Web site operators “to track the mobile devices’ Internet activities over multiple Web sites.”