After some googling I saw that ContextMenuService is hiding out in the toolkit, and that is a seperate download.
So I went over to http://silverlight.codeplex.com/releases/view/78435 and dowloaded it. Expecting too much (and a little magic maybe) I still cant use <toolkit:ContextMenuService.ContextMenu> tag :-(.
What do I need to do (from the scratch, did I even donwload the right file?) to get this baby up and running, really want ContextMenus for my lists! :D
Cheers!
I would suggest downloading the Silvierlight for Windows Phone Toolkit Source & Samples - Nov 2011.zip and get the samples windows phone app working. That will show you some really good sample code .. then I'm sure you'll see what you are missing.