Mark Russinovich has another post up. As always - great reading - if you're a geek.
I think the best way to deal with companies like Sony who do things like this to consumers is to stop supporting them. Just say NO to Sony products. CD's, DVD's, TV's, etc. Just don't buy their products. Let them know why. Contact information is in their FAQ.
For those that like writing letters:
The Sony Corporation of America
550 Madison Avenue
New York, NY 10022