In Mossbergs review he reported that this was a known issue and a fix is coming soon.
Stop misquoting what happened. Mossberg said he reported that the bars went down, but Apple assured him it the reception was fine it was just the bars incorrectly reporting low signal. But these cases are not like that. People have lost there connect altogether, cannot make calls and Speed Test slow down and fail altogether when you touch both antenna's at the same time. This is not the issue Mossberg was on about.