"Sony discussed the number of people that were actively interacting with the PlayStation Network services in yesterday's bloggers meeting. According to Sony, there are about 500,000 PSN accounts open in the North America. However, according to recent sales data from VGcharts.org, one can see that there are about 1.3 million PS3 systems out there: shouldn't more PS3s be connected to Sony's Xbox Live alternative?
Phil Harrison was quick to point out that the 500,000 figure represents PSN sign-ups only. You can still use the PS3's online capabilities without ever registering for Sony's online service by uploading music to your console, or by using the Internet Browser, or by downloading a firmware upgrade. The goal of Home, however, is to increase PSN sign-ups, and have people become increasingly involved with Sony's robust online services."