HAHAHA!! Seriously??? Did you really just write that?? You must work for Apple. Don't tell me I don't know what I'm talking about when I'm sitting here at my house and watching the damn signal drop with or without the bumper on it. I can give two ***** what CR or Apple says about it. If I hold the lower left corner of the phone WITH or WITHOUT the case on it, the signal DROPS!! Get over yourself and don't tell me what I do and don't know. Its common freakin sense.
...and to answer the other question, I started this thread because theres a misconception that the bumper solves the signal issues because it doesn't!!
With all due respect mikejfrd, the testing from Anandtech, AntennaSys, and CR point to the very simple fact that there are indeed MULTIPLE effects going on here. Conductive bridging (iPhone-4 specific), signal blocking (not iP4 specific but possibly worse due to antenna location), and Apple's screwed up bar display, giving a VERY precipitous drop-off near the low-end of the scale.
While it is true that a bumper or case can't "fix" ALL of these issues, it does fix the biggest issue (at least according to those independent studies)
Apple's PR was indeed a smokescreen, but it may not be entirely untrue, as fixing their screwed up signal scale will at least display something more useful when we conduct our own "kitchen table" tests later on.
NOTHING will fix the signal blocking issue though (short of a complete redesign with the antenna placed somewhere else), as putting your fat fleshy hand over ANY antenna will block SOME signal. This may turn out to be worse with the iP4's edge-antenna design, but according to the tests mentioned (AntennaSys' data transfer tests especially) show that this may in fact, NOT be a huge problem. (read their article)
As an aside, I've got a theory on how this all happened.
The iPhone-4 design was actually meant to use some sort if antenna insulating edging, but when accidentally shown to Steve Jobs in it's naked glass and stainless steel beauty, he declared "Hell No!" to those plastic and rubber things!" even going so far as to price them at $30 (hoping no one would buy them).
Sounds plausible to me anyways
