We may be living in a "post PC" world according to some, but PCs are unquestionably still big business, and they're now a bigger business in China than anywhere else. That's according to the latest report from market research firm IDC, at least, which found that both PC sales and shipments in China inched ahead of those in the US for the second quarter -- the first time that's ever happened, and earlier than IDC had previously projected. In terms of hard numbers, that translates to sales of $11.9 billion in China (compared to $11.7 billion in the US), and shipments of 18.5 million units, which represents a 14.3 percent jump year-over-year (as opposed to a 4.9 percent drop to 17.7 mill
