Recent news says the gestures won't be in the final build. I made a joke about the sex gustures, but here is my real thought.
They want to see how developers like it, and if they are willing to tweak their apps so the guestures on the app won't interfear with the gestures on the main os
I fell the gestures may come with iOS 5, as it seems to be a "major" feature that could be added to a tweaked UI. (white title bars for example, different gradients, but over all the same core look) Over all I hope they keep the home button, may be turn the home button in to a short cut button where you can get access to apps quick
Single tap for Mail
double tap for safari
Trippe tap for maps
etc. you get the idea.
They want to see how developers like it, and if they are willing to tweak their apps so the guestures on the app won't interfear with the gestures on the main os
I fell the gestures may come with iOS 5, as it seems to be a "major" feature that could be added to a tweaked UI. (white title bars for example, different gradients, but over all the same core look) Over all I hope they keep the home button, may be turn the home button in to a short cut button where you can get access to apps quick
Single tap for Mail
double tap for safari
Trippe tap for maps
etc. you get the idea.