Im a little disappointed with Google.
4.3 and 4.4 dont bring any new major features. 4.2 was the last update to bring some noticeable features: lockscreen widgets, swype keyboard, multi user accounts, better notifications, etc.
4.3 brought under the hood improvements, like TRIMM.
4.4... I just dont see anything... some Google Now and Search improvements like "Ok Google" and little else. A new launcher, fullscreen mode, some minor UI tweaks, more improvements under the hood...
Anything I'm missing???
Oh, yeah, a new printing option and the NFC payment i guess...
2 android updates and Google hasn't included new interesting features.
Im losing interest in the Nexus line actually due to this.
There was this cool rumor that 4.4 would bring all the stock apps to the Play Store. Nothing happened at last. It's a shame. I really liked the Google Experience launcher on the Play Store idea.