Striking is Multisite compatible
The striking theme has been coded to work without any issues in a wordpress website setup as a multisite. The biggest advantage of using a wordpress multisite is that when it comes to updating you only have to update each theme, plugin or any other addon you have created, just once.
Striking has been coded and optimized to make it run seamlessly on such install.
Note: More information on licensing and usage of a single theme in a multisite install can be found at themeforest and the striking support forum.