OK, first off top marks to the organisers of the Open Mobile Summit for arranging free WiFi for delegates.
However, it's notable that we've all been given daily BT OpenZone scratch-cards, rather than just having a dedicated conference-room SSID or single conference login. There was an OpenZone speaker, so I guess this may have been negotiated outside the usual hotel/event channel.
However, while I'm glad to have WiFi, and OpenZone is generally far better than peers like Swisscom in terms of attitude & pricing, it's a bit of a pain to use.
The BT splash-screen takes about 10 seconds to appear in the browser. Then it asks for both a username & password, which is a bit silly given they're both printed on the same card (behind a scratch-off panel - overengineering or what?)
I then have to enter both a 9-digit ID and a 10-character alphanumeric keyword. And then re-enter it after each time I hibernate my PC during the breaks.
It's completely unnecessary hassle - especially given the unfriendliness of the password. I haven't dared try and hook up any phone-type WiFi devices. Honestly, it's £5 worth of WiFi, not a bank account, so why the goldplated "security".
If anyone cares - my username & password are 409650422 and uhbpAKj4R8 respectively....