My 64G iPad (1) WiFi just updated to 4.3.1 and still no 4.3 for my Verizon iPhone 4!!!!!!!!!
One of the complaints I had when I left Android was how randomly the updates were distrubuted. With multiple vendors this was understandable but still frustrating.
Apple has two (2) iPhone 4 model's and they can't even get the update out at the same time. This is becoming a little troubling