[vacri]

For example, Android 2.2 added huge performance gains ... It also added very useful new features like wifi hotspot that make the device much more useful. ... Is that just minor?

Yes, I think so.

Compare to this snippet: March 9, 2011 – iOS 4.3 arrived, delivering hotspot functionality, faster browsing, lock switch settings and improvements to AirPlay and Home Sharing. [1]

iOS gets to call hotspot and faster browsing a minor version, why not the same for Android? It's comparing apples and oranges. Similarly, the cycle for Android 2.0 to 2.3 was around a year (well... 14 months) which is equivalent to the cycles for iOS major revs, which are about a year each [2]

I'm currently trying to upgrade a bit of software at the moment at work that's a few minor points out... but those minor points contain some delicious features. Doesn't mean it's not a minor revision upgrade.

[1]http://www.gottabemobile.com/2011/06/03/ios-and-iphone-timel... [2]http://en.wikipedia.org/wiki/IOS_version_history#Versions

edit: clarifications