Recently iTunes reported the following:

About innovations can be found in the
originalI can only say that the update has affected the iPhone, iPad, and iPod touch.

Most of all, the iPhone 4 Wi-Fi hotspot beckons me, something that used to be called wi-fi tethering.
In this connection, I am very concerned about the question:
habrahabr.ru/qa/5592')
UP.
In the comments there was a question from
A1MaZ about the speeding up of Safari.
I launched a test in which Apple intended to speed up Java Script 2 times:
SunSpider 0.9.1Here are my results (4013.4ms ± 0.6%) iphone 4 iOS 4.3, who are interested, can compare on the old version, another device, or their working machine.