Apparently, Logitech and Sony had a very bad argument. In fact, Logitech successfully sued Sony for over $100 million total.
So, Sony isn't going to be easy to get into or happy to be part of doing business with someone who has taken money from them.
(I'm copying this from someone else who did all the research)
"What a mess..
Shame on this Industry for treating their source of Profit this way. it's all about the $$$$
Logitech and Immersion
http://www.logitech.com/en-us/press/press-releases/1448
Logitech buys a stake in Immersion
http://www.nytimes.com/1998/04/16/business/logitech-gains-immersion-stake.html
Immersion holds the US patent on FFB technology.
http://www.google.com/patents/US6424333
http://www.google.com/patents/US6275213
http://www.google.com/patents/US6088017
it's called touch Sense - and it's what gives logitech wheels, it's Feel..
2002 - Law suit Immersion VS SONY and Microsoft. - Settled in 2007
http://en.wikipedia.org/wiki/Immersion_v._Sony
Sony had to PAY Immersion big $$$$
"As part of the agreement reached between the two companies, Immersion will receive the full amount dictated by the District Court, which with interest is stated to total $97.2 million, in addition to royalties. On top of the $30.6 million in compulsory license fees which Sony had paid Immersion over the previous two years, Sony will make 12 more licensing payments through the end of 2009 totaling $22.5 million, during which other royalties may also be paid"
Immersion today:
http://www.immersion.com/markets/gaming/products/
Thrustmaster is using Immersion technology on the T100
http://www.thrustmaster.com/en_US/products/t100-force-feedback-racing-wheel
I've been following this whole wheel technology debate for a long time..
It's not pretty..
It all could have been settled the Same way Logitech and Microsoft did -
a 10% stake in Immersion and it all would have been settled, and Sony could have full Immersion Support..
But after the SONY - IMMERSION battle - there's no way SONY will allow an Immersion Technology to be used on the PS4."
Edit done-My take on this: We will never, ever, ever have ANY Logitech products compatible with the PS4. I'm done looking. And I WON'T get one.
As I said before. Sony can die with their profits.