Android Police alum and current Ars Technica editor Ron Amadeo has been hard at work on something that might be of interest to you. Head on over to Ars and you can read Ron's 40,000 word history of Android. Yes, 40,000 words – for reference, the classic novella Animal Farm is about 10k words shorter. I can only hope Ron's bosses will unchain him from his desk and allow him to sleep now.
Pop quiz: How long does it take for a new version of Android to be widely adopted? A new version of Android comes out, AOSP updates, OEMs adapt it to a myriad of devices, and carriers test the updates. That process. How long does it take?
It's a tough question to answer, mostly because Google doesn't provide data like that. The official site shows a 6 month version history, and that's it.
Before Apple's iPhone and Google’s Android OS burst onto the mobile device scene in 2007, there were few significant advances in mobile technology. Frankly, "smartphones" (if we could even call them that at the time) were boring: they did little more than email, general messaging, picture taking, some basic apps and games, rudimentary internet browsing, and enterprise integration.
The biggest players at the time were Microsoft Windows Mobile, RIM's Blackberry, Palm, Symbian, and Linux.