There were 2 talks so I'll do my best to summarise:
He started off by explaining how he got into the industry (programming Akalabeth in 2 weeks)
Going onto how that got him into ultma (the history of which he wrote for English home work)at this point in the 1st talk he went onto how to make games, which basically was how the game designer has to realise the vision of the game while managing the demands of the programs, artists and sound engineers. (As you can imagine the audience had lots of questions about this part)
From that he highlighted the 3 eras of gaming, (solo, mmo, social mobile) and how they had changed by orders of magnitude in revenue. From this he linked into he three main gaming companies and how they fitted into this (as well as mentioning the idea of a WC mmo which EA shot down). He also high lighted the importance of learning from your mistakes (U8 and shipping too early, Tabula Rasa and having to reset the game three times as the company kept changing their minds and he went with them)
On the future he mentioned his new company (Portalarium) and the collector game they are making which I guess some people here will hate BUT talking to him afterwards it in fact seems a very clever idea, they have already released some gambling games which use friend networks. This new game has a-sequential play with item collection and item trading and manipulation. All of which are things needed for the new Britannia game ( just add fighting and magic and bake for 20 mins). So instead of making the whole game then play testing it, they are releasing increasingly complicated games and learning from each of them how to make the final product, which hopefully will be a worthy addition to the ultima series.
There was also some cool stuff of his work on the x-prize and other space projects as well as how seeing the earth from space changes your view point in life.