AT&T says that the new iPhone OS 3.0, released June 17, supports auto-authentication 
[1]for iPhone OS 3.0 users connecting to AT&T WiFi Hotspots. Auto-authentication allows iPhone users to seamlessly switch between the carrier's HSPA network and an AT&T Hotspot without being prompted.
The new auto-authentication process is available for all existing iPhone and iPhone 3G customers who download the update via iTunes. It will also be available to iPhone 3G S customers when that device goes on sale June 19.
AT&T also says that its WiFi Hotspot usage is growing. More than 4 million connections were made to AT&T Hotspots in the first quarter of 2009 using smartphones, including the Apple iPhone 3G. Overall, AT&T's WiFi connections in first quarter topped 10.5 million.
For more:
- See this press release [2]
- See this video [1] of the iPhone OS 3.0
Related articles:
Apple to release iPhone OS 3.0 [3] update today
AT&T: WiFi connections reached 10.5M in 1Q09 [4]
AT&T buys Wayport [5], increases WiFi presence
iPhone [6] users finally get free WiFi on AT&T hotspots
AT&T gives all DSL subs free WiFi access [7]
Links:
[1] http://www.fiercebroadbandwireless.com/story/video-iphone-os-3-0-and-iphone-3g-s/2009-06-17
[2] http://www.fiercewireless.com/press-releases/t-wi-fi-supports-auto-authentication-new-iphone-os-3-0-faster-hot-spot-connections
[3] http://www.fiercemobilecontent.com/story/apple-release-iphone-os-3-0-update-today/2009-06-17
[4] http://www.fiercebroadbandwireless.com/story/t-wifi-connections-reached-10-5m-1q09/2009-04-24
[5] http://www.fiercebroadbandwireless.com/story/t-buys-wayport-increases-wifi-presence/2008-11-07
[6] http://www.fiercebroadbandwireless.com/story/iphone-users-finally-get-free-wifi-t-hotspots/2008-11-03
[7] http://www.fiercewireless.com/story/t-gives-all-dsl-subs-free-wifi-access/2008-01-23