SF Bay Area based Devicescape have rolled out EasyWiFi, a simple to install, easy to use WiFi and Access Point login aggregation application that stores your usernames and passwords safely in the cloud, and logs you on automatically. DeviceScape works with both mobile handsets that have WiFi as well as Macs and PCs.
For those of you who use multiple hotspots, like Boingo, T-Mobile, BT OpenZone, The Cloud and others, plus have your own access points at home and in the office DeviceScape is a simple and easy way to stop the constant "what are my log on detail" maladies. It's also FREE.
I've used it a lot in my travels, and in conjunction with client Truphone, it's a fast and easy way to log on and make VoIP calls.
I've also used the Boingo Mobile Client from Client Boingo and find that now with their roaming relationships with both AT&T and T-Mobile rolling out, that Boingo Mobile meets most of my needs. The one benefit with DeviceScape is it manages your other providers as well. So get a Boingo Mobile account, then decide which app you need.