Changed Toolbar Height

The toolbar height has been changed from 40 points to 44 points in order to reflect Apple's spec on tappable UI elements. This is a very simple change that improves the user experience and allows the toolbar to closer resemble the one that users encounter when browsing in Safari.

Source:
http://developer.apple.com/library/ios/#documentation/userexperience/con
ceptual/mobilehig/Characteristics/Characteristics.html