Apple has a good sense of humor and doesn’t mind picking on themselves and their legendary secrecy. The t-shirt is available for purchase exclusively at Apple’s Company Store in Cupertino California, the message is:
“I visited the Apple campus. But that’s all I’m allowed to say.”
You’ve always been able to buy Apple t-shirts and gear at the Company Store, but this looks like a new addition for 2011. The Apple Company Store is located at 1 Infinite Loop in Cupertino California, it even has its own website, but you can’t order anything online, so if you want one of these you’ll have to make the trip yourself.