Alan Rogers questions

Alan Rogers answers

• How expensive is it to create an NSAutoreleasePool
• MPMoviePlayer load and play movie saved in app documents
• How would I draw something like this in Core Graphics
• How can I develop production iPhone apps and iPad apps on the same machine?
• How can I create a button with a UIActivityIndicator in my navigation bar with the same style as normal buttons?
• how do i to make a window(osx) always hover on top of screen
• iPhone hide Navigation Bar only on first page
• Can an inherited @property not satisfy a <protocol> @property?