My LG Optimus 3D Max updated OTA to GRK39F a couple of days ago. This version was rolled out to the Nexus phones in September 2011. 

I'm hoping it is a precursor to the Android v4.x update LG has been promising for Q4 for my phone. 

Adding: I love the3D Max phone the way it is....and have Android 4.x on my HTC Sensation and Lenovo K1 tablet....so not in a huge hurry here for any updates unless they really add value.