We learned back in November that Windows 7 was having a much (much!) better first few days in retail than Vista did when it launched, but now that the system has had a full quarter and change to make an impression, it looks as if that growth isn't slowing down. According to new figures from Net Application, Win7 is achieving a higher level of market penetration in a faster amount of time than Vista did; after a month, Vista was stuck at 0.93 percent, while Win7 nailed the 4 percent mark. After two months, Win7 jumped to 5.71 percent, while Vista was barely over 2 percent after the same a