I would not trust the "word on the street" about auto-focus. And by "word on the street" you probably mean "word on the internet". There is a lot of misinformat

I would not trust the "word on the street" about auto-focus. And by "word on the street" you probably mean "word on the internet". There is a lot of misinformation out there, because most enthusiasts have significant investments in other interchangeable lens systems and would be rather unhappy if a new system took off. If you are worried about AF speed, go to a store and give it a try. It's probably too slow for serious sport photography but I guarantee you it will be faster than two seconds. Regarding the screen, the resolution is probably lower to make it brighter. Higher resolution often reduces brightness (it requires more non transparent and semi transparent elements), so they probably could not get the 900k screen bright enough. Again the only way to check if it is a show stopper is to try it. BTW I have not tried it myself, but that is because I cannot afford it right now and am afraid that if I try it I will buy it.