So recently I stumbled upon the APK files for Google's new Google Home Launcher, 4.4 Keyboard, and new Hangouts. (If you just want to skip to the APK file downloads, here you go:http://www.phonearena.com/news/How-to-install-the-new-Google-launcher-and-apps-from-Android-4.4-KitKat-keyboard-Hangouts-camera-wallpapers_id48969). I downloaded and installed these, knowing my year old Samsung Galaxy SIII wouldn't be receiving the Android 4.4 update [EVER], and after using my dad's Nexus 5 for a few minutes, I gotta say it looks pretty close. I love this launcher, and I can't figure out why Google won't release it on the Play Store anytime soon. It's brilliant! It works well and looks like Kit Kat. No extra launchers or themes necessary, just apply the launcher and you've got Kit Kat on your home screen. The new Keyboard is really neat, too. And the Hangouts with integrated SMS? I love it. For anyone who hasn't gotten the update yet or has a device that will never get it, I recommend this. Also, if you download the Jelly Bean Go Locker theme and the Go Locker app and it's dead on! Alright, I'm done. Now to go look up more useless things!
[uPDATE]
New Hangouts and 4.4 Keyboard released on Google Play a couple days ago, though no update on the Google Home launcher. Will update when there's news!