Sorry, but I find such efforts are a waste of time. Letters and emails can be ignored. (and often never reach the right people).
You're better off helping open driver projects in some way. (help test, run their analysis tools, etc).
There is nothing more effective than sending a loud message to the manufacturer: "If you don't support us, that's fine. We'll support ourselves."
Posted by tumble on March 21, 2007 at 02:53 AM