Verisign has recently put out a White Paper on Global WLAN roaming using certificates. Here's a pointer to it:
http://www.verisignlabs.com/Papers/VeriSign-WLAN-Security.pdf -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
