How does iPad WiFi model have locatiion service --- Skyhook Wireless

[1] http://bbs.weiphone.com/read-htm-tid-1020301-page-2.html

Skyhook Wireless

Website Skyhook Wireless
Skyhook Wireless (formerly known as Quarterscope) is a Boston-based company that has developed a technology for determining geographical location using Wi-Fi as the underlying reference system. Using the MAC addresses of nearby wireless access points and proprietary algorithms, WPS can determine the position of a mobile device within 20–30 meters. It provides service similar to GPS without GPS hardware and can also integrate with GPS-enabled devices to provide hybrid positioning. Skyhook Wireless claims that with sub-second time-to-first-fix, supposed 20–30 meter accuracy and near 100% availability indoors and in dense urban areas.
Skyhook's database is gathered through wardriving,[1] and includes more than 100 million wi-fi access points and covers 70 percent of population centers in the United States and Canada.[2]
Skyhook Wireless offers Loki[3], a free 'virtual GPS' toolbar that automatically integrates a user's location with web content such as Google Maps, Fandango, Weather.com, etc. It has been now replaced by a "Find Me" page on the website, as well as tools and SDK's used for adding location-based data to sites such as WeatherBug.com.
Skyhook announced a partnership to help users in geotagging their pictures.[4]
At the Macworld Conference & Expo in January 2008, Apple CEO Steve Jobs announced that both the iPhone and iPod Touch will use Skyhook's WPS as the primary location engine for Google Maps and other applications.[5] However, Apple revealed that starting with iPhone/iPad software 3.2 in April 2010, its devices no longer uses Skyhook, but relies on its own location technologies.[6]