here is an interesting video on the Technology changes in NAV 2013, you can download the presentation if you wish to watch it offline.
The sound can be a bit tinny sounding but it’s a free presentation and at 59 minutes long it does cover a lot of ground
You can view the presentation by clicking the link below
http://channel9.msdn.com/Events/TechEd/NewZealand/TechEd-New-Zealand-2012/DYN101
Metaphorix 