This excerpt taken from the DT 6-K filed Mar 3, 2006.
Further improvement to public WLAN offer. T-Mobile again markedly expanded its HotSpot offer in 2005. The public local wireless networks based on WLAN technology give customers access to mobile broadband data connections. T-Mobile is the only mobile operator to offer WLAN services throughout Europe and the United States. Including the HotSpots that can be accessed on the basis of roaming contracts, the company now has just under 20,000 locations, 6,000 of them in Germany alone. A truly groundbreaking step is the cooperation agreement signed with Deutsche Bahn (German railway); under this agreement, T-Mobile Deutschland will provide a growing number of train stations and trains with mobile Internet access. In 2005, the volume of minutes utilized at HotSpots in Western Europe more than tripled to over 150 million minutes.