>2. because applications which used to have a working fullscreen mode — such as firefox — and get converted to the Lion API result in no gain and lots of pain
As a Macbook Pro user, I've been looking forward to Firefox's implementation for a while. Applications that take advantage of Lion's fullscreen API allow me to easily swipe between multiple apps with the trackpad, which make using a laptop significantly nicer without needing to use an external mouse.
It is essentially broken for people who have multiple displays and Apple sucks because of it. But it's not broken for everyone and provides significant functionality for a lot of people.
>2. because applications which used to have a working fullscreen mode — such as firefox — and get converted to the Lion API result in no gain and lots of pain
As a Macbook Pro user, I've been looking forward to Firefox's implementation for a while. Applications that take advantage of Lion's fullscreen API allow me to easily swipe between multiple apps with the trackpad, which make using a laptop significantly nicer without needing to use an external mouse.
It is essentially broken for people who have multiple displays and Apple sucks because of it. But it's not broken for everyone and provides significant functionality for a lot of people.