If you do not know even before the RTM release of System Center 2012 Microsoft started work on SP1 of the product. One of the main feature in SP1 is the support for Windows 2012 and Hyper-V 3.0, more features and improvements are expected when beta is released. You can grab the documentation here.
If you want to watch MMS 2012 videos offline here is a link to download them automatically via PowerShell script.
Microsoft is offering a free tour on the System Center Stack. Click on the link and discover.
If you haven’t watched the live event of Microsoft’s Private Cloud Jump Start you now have the chance to watch the recordings. Here is the first recording. The other you can find under the video player of the page.
System Center 2012 components are released to download. Unfortunately for now only to MSDN subscribers, Microsoft partners and VL Customers.