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Ignoring the fact that my phone has had the signal problem since day one and is still unusable without a case (just picking it up with my left hand would kill all signal), amazingly my 4.0.1 iPhone 4 now gets 3 bars where it used to receive 5.

Fine and dandy, but from the same location I have always had full bars both with this iPhone, my last iPhone and a half a dozen other AT&T phones over the years.

This is because you were not seeing an accurate representation of your signal with your iphone prior to today's update.
 
Mine is up!

Just ran on wifi:

before 4.01 I would get 5900 kbps - 6500 kbps download speed.

Now I am getting 8900 kbps - 9300 kbps! Fantastic!
 
I'm getting the same results on OS 4.0.1 that I did on 4.0.0. About 2Mb/s down, and 100-200Kb/s up.

That's with 3 bars on 3G (formerly 5 bars on 4.0).

So, as expected, the only thing that has changed in that regard is the mapping of signal level to bar-display.
 
This could be true. I don't claim these to be scientific, tested results. It's just what the app tells me.

You don't claim the numbers to be scientific results, but good enough to ridicule people who know they are crap.. basically.
 
My speeds are a bit better, I went from 1000 kpbs down and 95 kpbs to 2500 kpbs down and 105 kps. I am not sure sure if it helped or not but I took out the SIM and trimmed it a litlle bit
 
I would say your current download speeds are typical. I had 2500 down one day but that was a freak occurrence. Trust me dude. A guy in my office bought the Droid X today and was highly upset that he could only eek out about 350 down / 700 up.

Our UP will increase once AT&T gets their act together.

Here are my latest results, 4.0.1 installed. These were all tested while being held "wrong"

p_960_640_4560FFCF-0577-4A8F-AD26-0BB5B80F5A58.jpeg
 
The original (4.0) speed test was done 3-4 days ago.

The 4.0.1 test was conducted 15 minutes ago or so. Then waited about 20 minutes and conducted it with the "death grip"

Your test is meaningless. So many other variables that affect network speed could have changed over the past 3-4 days that it is impossible to conclude that the software update caused the problem.
 
I updated to iOS 4.0.1 last night and ran some speed tests (WiFi). I used the speedtest.net app. I ran tests on my iPhone and they were about 1Mbps slower than it was before the update. So, I ran a test on my laptop and sure enough, on the exact same server, I get at least 1Mbps faster speeds on my laptop than a speed test on my iPhone.

3G is still going strong though:

4798632427_64f7e8afc4_o.jpg
 
I updated to iOS 4.0.1 last night and ran some speed tests (WiFi). I used the speedtest.net app. I ran tests on my iPhone and they were about 1Mbps slower than it was before the update. So, I ran a test on my laptop and sure enough, on the exact same server, I get at least 1Mbps faster speeds on my laptop than a speed test on my iPhone.

3G is still going strong though:

4798632427_64f7e8afc4_o.jpg

WOW, not getting that kind of speed here in NY!
 
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