You can now watch the full talk on the home page of my blook.
Note the session was 56 minutes long but I stop my talk at 26:20 to allow the audience to have a conversation and after 7 minutes I start to take questions at 33:20. Q&A lasts 23 minutes. So 50:50, about 25 minutes for my talk and 30 minutes for conversation and Q&A.
I call this a conversational talk. I wish more speakers would adopt a similar format.
In this talk, however, I wish I had given more time over to conversation and less to Q&A as I think Q&A is not really interaction and it is in the conversation where the real value lies.
Oh and I dont like lecterns either but in this case there were no lapel mikes and I was forced to stand still.