US Mac sales were up 13 percent year-over-year for the first two months of the December quarter, according to new NPD Group data cited by Piper Jaffray analyst Gene Munster. The amount is described as "soft" compared to what is expected for the quarter as a whole, the investor consensus target being about 5.2 million Macs, a jump of 25 percent over the same period last year. Munster is holding to a range of 5.1 to 5.3 million Macs, which he notes would be an Apple record.
