Beta 3 - IPhone Button Bugs

Hi, when using IPhone buttons I've found the following three behaviors/bugs:

1) On windows, when you press an iphone button -other than "Rounded Rectangle", it pastes the image to the background,

2) All buttons are placed in front of active objects, but they paste the backround (so, they don't respect transparency), so any active objects moving/animating behind that button won't be shown, and

3) If you set all button for "color-reduction" as image compression, you won't be able to build the XCode projetcs/app.

4) All buttons are shown on the IPhone/Simulator as "Rounded Rectangles" even though they are not marked as such.