Meteor Smasher (Windows Phone)

Hi everybody, I recently released this game called 'Meteor Smasher' to the Microsoft Windows Phone Store and am looking for some honest feedback.

The game: The game itself is a simple endless, arcade style game where the player must tap on meteors to blow them up while trying to stop them from touching the ground.

Download URL: To download simply search 'Meteor Smasher' in the Microsoft Windows Phone Store (it isn't available on other platforms) or follow this URL: http://www.windowsphone.com/s?appid=d11ee8e2-0c14-48df-92b4-3827eddb90a5

I'm only looking for general feedback - so nothing involving a complete redevelopment - since I want to keep the game simple yet hopefully addictive. Thanks in advance!