Hello from London! Getting situated. Barely online via 3G USB modem. (ugh!)
Bootstrapped my Mac onto this 3 HSDPA USB modem via my Parallels installation. Got it going, now trying to share it from MacBook Pro.
Having a horrible time getting Internet Connection Sharing to work. Wont give a valid DHCP response it seems.
Got it working. Had firewall set up really tight and was denying incoming DHCP requests from sharing clients.
Infrastructure done: 3G HSDPA modem connected to Leopard, Leopard sharing that to private WiFi network for others. Whee! Sleep soon.