Here is the link to the video: http://www.youtube.com/watch?v=yA72kfo856w
If you are interested in testing the device's ultimate speed, you shouldn't be running the test at the same time right next to each other period. That causes channel interference (if on same carrier) which degrades performance, not to mention you are cutting available air interface resources in half in on the same channel/sector. That is not going to tell you jack **** about how the device performs (as far as above average potential) in comparison to another device on the same network...it only really shows how each device handles data in a crappy signal situation....interestingly ATT was better than VZW.
It has been demonstrated that the Atrix lacks HSUPA and will generally not perform as well as iPhone4 (or other HSUPA enabled device) until this problem is resolved.
In the real world, he probably isn't running a speedtest right when you are.
It's still pointless as if you are trying to compare device speeds on the network, you need to give them ideal conditions....otherwise you aren't comparing the devices really. This is obvious because it isn't showing the Atrix's crippled network interface.
I'm not even sure I understand what you're arguing. Someone next to you is not using a data connection if they're not running a speedtest? Because that's what it sounds like you're saying. The speed of the phone next to you is irrelevant. A phone pulling down 1000Mbps as opposed to 100Mbps won't magically decrease the surrounding signal. In modern devices, channel interference like that isn't really a problem anyway.
Based on that statement, it looks like you really don't understand how WCDMA (or CDMA based) networks work. Channel noise, noise floor, neighboring interference etc. plays a huge part in network performance. So yes, even though signal receive strength may be very good, performance can suffer from channel noise...and I see it all the time in cell overlap areas (I live in one even).
And when you have two devices like that operating right next to each other using the same ARFCN, especially if one is in the upload portion of the test, it's going to create additional noise that the other device is going to have to fight through....then throw on top that both devices are fighting for whatever is left of free resources on the site..which is basically cutting whatever is left in half....if they are on the same sector/channel.
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