OK so I happen to have two Bolds with me and I am swapping parts (going to give my GF one of them) anyway... mine is a Roger's Bold and the second one is an AT&T bold.
Rogers=Made in Canada
AT&T=Made in Hungary
...at least in my particular case.
So having the phones completely apart first thing I notice on the AT&T Bold is that the trackball metal bracket wasn't fully clipped down. The phone is AT&T sealed and this is the first time it's taken apart. The phone is only two weeks old. So I pop the bracket off and straighten it out and pop it back on. All is well. Secondly two of the screws holding the midplate down were cross-threaded and were extremely tight. Taking out the screws reveals stripped metal. Screws tough to put back in.
Next: the LCD on the Roger's is noticably brighter, sharper, and contrastier @ 100% brightness on both, viewing the same pic, on the SAME OS.
It's an obvious difference.
Last when I press the call/end/trackball on both devices, the AT&T Bold's LCD does the "ripple effect" and looks nasty as you touch buttons. The Roger's is rock solid and the LCD is not affected by button presses.
This explains a lot of the AT&T issues people are having with the Bold, namely the wavy LCD/button press thing.
Roger's BOLD MADE IN CANADA FTW!
Roger's Bold vs. AT&T's Bold. Both taken apart, close analysis and observations! 
Linear Mode
