Apple might be billing its next big event as "Back to the Mac," but don't let that fool you into thinking its computer platform has been waning. Quite to the contrary, according to IDC, which reports the Cupertino team has grabbed third spot in the US PC sales charts with a 10.6 percent market share, bumping the incumbent Acer into fourth. Two million Mac shipments during the period represented an increase of 24.1 percent relative to last year, while the overall PC market turned in a somewhat morose 3.8 percent growth. Gartner's also unleashed its numbers unto the world today, giving Acer the lead for third by the slimmest of margins, but both stat teams agree that the Taiwanese vendor has suffered a bad year along with Dell, which has also experienced some shrinkage. Toshiba's the only major Windows machine seller to see its fortunes improve with double-digit growth, while HP seems to be hanging on to the top spot nice and steadily. Hit the source links for worldwide numbers.