Apple may have wrested the top spot from HP in portable computing if its surging iPad sales are factored in, DisplaySearch said in an estimate. The combination of the tablet and Macs saw Apple ship 10.2 million portables of some kind in the fall to claim 17.2 percent of the market. HP's clinging to traditional Windows notebooks PCs would have dropped it to second place at 9.3 million, or 15.6 percent.
