More than 50 percent of all iPad users have a computer running some variant of Windows in their homes, according to data collected by advertising group Chitika. Windows XP was the most popular OS among iPad users (19.2 percent), followed closely by Windows 7, then Windows Vista. Windows 2000 brought up the rear. 62.95 percent of the group had a computer running Mac OS X.

The numbers were taken from a sample of 74,780 IP addresses coming from iPads on Chikita's network. The firm then studied the IPs and looked for other machines coming from the same locations. In order to weed out companies and retailers from their results, Chitika limited its list to IP addresses with five or fewer devices. What's unclear is whether Chikita checked those same IP addresses from before the iPad launch to see if other devices came from those IPs. The firm also had no way to count machines that were offline, not connected to the Internet, or just were not served an advertisement by Chitika.

Chitika maintains that its findings show that, just like the iPhone, the iPad has bridged the gap between Apple and Microsoft users. However, early adopters of any tech-related product are generally more tech savvy than the general population. Those same users are likely to have at least one other machine on their networks, and many may even run different operating systems. This doesn't mean that the iPad won't eventually bridge the gap, but the data isn't robust enough yet to draw such a conclusion.