Dimensions of some controls in the iPhone

 

Element	Size (in points)
Window (including status bar)	320x480 PTS
Status Bar (How to hide the status bar)	20 PTS
View inside Window (Visible status bar)	320x460
Navigation Bar	44 PTS
Nav bar image/ Toolbar Image	Up to 20x20 PTS (transparent PNG)
Tab bar	49 PTS
Tab bar icon	Up to 30x30 PTS (transparent pngs)
Text Field	31 PTS
Height of a view inside A navigation bar	416 PTS
Height of a view inside A tab bar	411 PTS
Height of a view inside A navbarAndA tab bar	367 PTS
Portrait keyboard height	216 PTS
Landscape keyboard height	140 PTS

Dimensions of some controls in the iPhone