That's because you compiled your program with API 10, you Always use the latest API.
API 10/14 is for admob, but it will grab that in the background.
Printable View
the final api is only for your development, and the admob lib is always build using api 10 to cover the wide range of device.
and of course using 21 or 22 is much better than 14 for this case anything above 17 will help admob a lot.
Awesome. Yeah, I'm finding it takes about 1 or 2 seconds for it to come back and receive the ad. So I request it at the start of the frame and then just show it at the modified time interval depending on how long my stage is for the player to complete. good stuff.