Oh, my friend, you should go back and do your homework. Whether it's
technically a developer conference or not is not the point. The history of the event, and the keynote in particular, is that they release new products, applications, and services for the mainstream consumer.
2013
- Google Play Music All Access
- Google Play Games
- Google Play Edition Devices (Samsung Galaxy S4 with stock Android)
- Google+ redesign with emphasis on photo management and sharing
- Google Hangouts
- Redesigned Google Maps desktop and Android app
- Updated Google Search app for Android
2012
- Android Jelly bean
- Google Now
- Nexus 7
- Google Glass
- Nexus Q (even though it was soon scrapped)
2011
- Google Music
- Android Ice Cream Sandwich
- Chromebooks
And all that just within the last 3 years preceding this one. So just b/c I/O is technically a developers conference, if you don't think Google has historically released consumer products then you're simply not paying attention. The event gets the press attention it does BECAUSE it's not only meant for developers.