Hey guys, So i'm considering selling my Atrix 4g in order to get a galaxy sII. I'm currently on AT&T and I have a few questions about whether I should go for the AT&T or international version. First off, will I be able to access "4G" speeds (HSPA+ 21.1 if i'm correct) on AT&T with an international version? And secondly, what are the major differences between the two? As far as I know the ATT version has 4 capacitative buttons, has no notification led, but does have a NFC chip. Whereas the international version has an led, a single home screen button, but no NFC. Is this correct?