In brief, the feedback I received from the session was that if you client / company isn't ready to go cloud then make sure to focus on developing On-Premises solutions to work in Office 365 to avoid later needing to re-engineer.
A great article has just been published called
'Microsoft SharePoint 2013 Platform Options
What BDMs and architects need to know about Office 365, Windows Azure, and on-premises deployments' and this can be downloaded here: http://www.microsoft.com/en-us/download/details.aspx?id=40332.
A question was raised as to any details regarding Social and in particular Yammer. Another article regarding Social called: 'Social feature support for SharePoint Server 2013' can be found here: http://www.microsoft.com/en-us/download/details.aspx?id=39632 with additional information regarding Yammer and SharePoint here: http://go.microsoft.com/fwlink/p/?LinkID=257047.
I hope the information above is useful and look forward to seeing you / presenting at future events.
Thanks again for supporting the SUGUK community!