Google has announced that Android market has exceeded 10 billion app downloads. They have also posted a graph that shows the Android Market Growth. The Android Market saw 1 billion downloads in July 2010 and reached 6 billion in a year in July 2011. To celebrate this milestone they offer premium apps every day for the next 10 days at $0.10 each.
List of Apps at $0.10 for today include, Asphalt 6 HD, Color & Draw for Kids, Endomondo Sports Tracker Pro, Fieldrunners HD, Great Little War Game, Minecraft,Paper Camera, Sketchbook Mobile, Soundhound Infinity & Swiftkey X. More premium apps would be offered at $0.10 each every day for the next 10 days.
[Update: Google has posted detailed info-graphic about the 10 billion downloads including, popular time of download, download based on countries and more]