One of the little things I've noticed since the transition from the iPhone 4 is the auto-brightness. Or rather how the implementation of auto-brightness on the iPhone absolutely sucks:
http://www.displaymate.com/AutoBrightness_Controls_2.htm:
iPhone 4 Auto-Brightness Bug
One behavior of the iPhone 4 Auto-Brightness that is a serious operational error or bug is that it locks onto the brightest ambient light sensor value that it has measured at any point starting from the time it was turned on, and then continues to use that highest value indefinitely to set the screen brightness until the display turns off – either by cycling through sleep mode or full power off. This means that the screen brightness is frequently set too high, which wastes power and can cause eye strain if you move to lower ambient light levels. Auto-Brightness should always follow the current ambient light level (with appropriate time averaging and filtering). Apple should correct this with a software update. To easily verify this behavior with your own iPhone turn On Auto-Brightness under Settings and set the Brightness slider near the middle of its range. Go to a very dark location. Click the sleep/wake button on the top of the phone to turn the display off. Then wake it up with the sleep/wake button or the Home button. Note the screen brightness in the dark. Now take the phone to a very bright outdoor location (such as in direct sunlight) then go back (with the display on) to your original dark location and monitor the screen brightness. The display will remain at very high brightness indefinitely until the iPhone enters sleep mode again (or runs out of battery). What’s even more shocking is that BrightnessGate is even worse on Android phones…
I'd assume that the Ip5 has that problem fixed already, but the lumia 920 so far is working great, adapting to the proper brightness necessary for viewing (and no further). As a result, it produces the impressive feat of maintaining the same relative brightness, in a huge range of background lighting intensities.
Unfortunately since neither AT&T nor Nokia have any clue how to market their phones (based on their recent ads, compared to iPhone's ads or Sausmung snarky effort), none of the public will care either way.
I mean, here's an ad script that I came up in 30 seconds:
2 mountaineering guys in a blizzard, wearing gloves
A: "When's the storm going to let up? ... (uses competitor phone) - shoot, I can't see anything in this"
(Tries to use phone with gloves on) - or use it
B: "Let me see ... (closeup shot of 920) / text on side:
Super-sensitive touch screen
Puremotion HD display with ClearBlack
Pulls up home screen / weather live tile
"It'll let up within the hour"
A: "Cool man, wanna hit up the bar later?"
Tagline: "The Nokia Lumia 920 - are you a professional?"