Screen shots taken show up in the Camera Roll. When viewing your photos there's an icon in the bottom left of the screen which, allows you to e-mail the photo. That should work if you can't extract the photo from iPhoto/Windows.
I noticed that gliding "bug" too, though I thought it was a game nuance that took some time to master (for example, I'd thought it was possible to "throw" a block more than one space to the right or left to fill in gaps). Related question, aren't there certain items in the game (which aren't active right now I guess) allow you to move blocks beyond the default ways?