I wasn't sure if I was "allowed" to make the unofficial bid official bid myself, but seeing as there are two other bids listed officially I thought we should not let it slip us by. :) http://meta.wikimedia.org/wiki/Wikimania_2008/London is not very informative currently. I will try and add to it today - the Cape Town bidhttp://meta.wikimedia.org/wiki/Wikimania_2008/Bids/Cape_Town[1] has lots of sections and ideas to think about we can use ourselves. [2]
If I read the stuff on Meta correctly, we have nine days to make an official bid into the running, then until the end of September to finalise.
Let's do it people!