The 78% is worldwide, and a lot of Android's share is in countries where price is king (Android devices start at $50 unlocked). In the US Android has ~50% of t

The 78% is worldwide, and a lot of Android's share is in countries where price is king (Android devices start at $50 unlocked). In the US Android has ~50% of the market and I imagine the US has the majority of the world's hackathons (esp. ones that would be represented in this survey).