Android

4.3.1 on Galaxy S (slimrom)

2.2.2 on my crappy T-Mobile MOVE (aka Alcatel One Touch 908)... hopefully I can change this piece of crap soon

4.1.2 (eXistenZ_Ultra) on my Sony Xperia SP (Soon 4.3 officially!)

and

4.4.2 (Cyanogenmod 11) on my Nexus 7 (2012)

4.3 S4

Stock 4.3 Samsung Galaxy Note 3

4.12 on my Vega Iron

4.4.2 on my HTC One GPE....

4.1.2 on my Defy+.

4.3 on my Galaxy Note 2 running the Paranoid Android Rom

4.3 Galaxy S4

4.4.2

Android 4.3 for my XOOM tablet and 4.4.2 for my Nexus 4.

4.1.2

4.4.2 Nexus 5 :D

4.1.1

4.2.2 rooted on N4

4.4.2 on the CyanogenMod nightly built about 12 hours ago. ;) Galaxy S3 American (d2usc).

I see a lot of people using old versions on Nexus devices. What's keeping you from upgrading to KitKat?

As a fan of the platform I'm excited to see most people are using Jelly Bean (4.1.1-4.3.1) or later. Android really sucked and was a platform you had to really want to love before 4.0. I mean, it was okay, but it had so much potential. And having used Eclair, Froyo, and Gingerbread for 2.5 years, it was such a breath of fresh air to get a phone with Jelly Bean on it.

4.4.2 Nexus 5 ;)

4.1.2 Jellybean.

2.3.6 gingerbread IIRC

You know, I look at these threads and wonder "Am I the only one who doesn't own a moblie?".

Wow way more Nexus´s than i thought are here! You guys ROCK!!