The keynote address from Marc 
Weintraub was well crafted and expertly delivered. Aside from his comment below, I didn't really learn a lot I didn't know already.
Marc said that Fusion Apps were entirely greenfield and didn't have any copy and paste code - I'd not heard that before.
I understood Oracle's strategy to try to align with what he called "inflection points" so that it can offer customers what they want when they want it - so, for example, they can offer multi-tenant 
SaaS delivery of Fusion if a customer wants that. I have zero idea of the architecture behind that - Oracle don't seem to be talking about that yet.
The 
HMRC session was also very interesting. 
RTI will ultimately use 
BACS as a delivery mechanism, but as I blogged previously, they have accepted that an interim solution using EDI will be needed. In my estimation almost every UK employer* will need to find time to install and test the EDI delivery from their provider, then do the same again when the 
BACS version is released. In addition, since many 
UKGP customers are working with a customised 
BACS routine (it's an 
SQR), they will need to 
revist that too.
*at least those who adminster their own payrolls.
Oracle has plans in place for development using pilot customers in line with 
HMRC. It was very encouraging to see 
HMRC spending so much time with us, and as I said to the 
HMRC folks, my personal view is in accordance with the other feedback they have had - 
RTI is a good idea, but as ever the devil will be in the detail.
All in all a very good day - there is more, but it will have to wait.
I know I should be up all night partying in the bar, but I have a presentation to do tomorrow and I'm not as young as I was.