Apple Thoughts: What Percentage of iOS Installs are iOS 4?

"As early generation iOS-based devices truly start showing their technological age, and being left out of the latest and greatest features, how many iDevice users have the latest version of Apple’s mobile OS on their devices? One iOS developer chose to share some numbers that give us a bit of an insight."

While I'm always wary of numbers that don't come from official sources, these are probably the best numbers we're going to get unless Apple announces them at the next event. According to data supplied by Bump Technologies and Loopt, almost 90% of people with iOS devices are using some version of iOS 4. More than 50% are using the most current version, iOS 4.2.1. That's a lot of updates. The linked article also mentions that less than 1% of Android users are using the most current version of Android(though that's generally the fault of the manufacturers, not Google.) Have you updated to iOS 4?