[Disclaimer - I work at Telerik]
Just a few points about JustMock. Its API is more similar to Moq's API than RhinoMocks', so if you’re familiar with Moq you shouldn’t have problems learning JustMock.
What we've tried to do better in JustMock is to have a better story when mocking sequential calls for example.
Additionally as someone already mentioned JustMock makes it possible to mock static classes and methods / properties, sealed classes, non-virtual methods and properties and so on using the same Moq-like syntax.
Also thanks to this in JustMock it’s possible to do partial mocking.
Btw, the "black magic" that Dror mentioned is also possible when using JustMock if you reference directly the Telerik.CodeWeaver.Hook assembly but unfortunately that's not documented at the moment.
Should someone want to do that, he could open a support ticket and we'll be glad to help.
Hope this helps.
