> Has any company in history been so large and yet so reliant on a single product?
Google? (AdWords)
Uh, all the oil companies come to mind. As for tech; Microsoft? Actually, lots of companies are reliant on one of their products. Though I'm not sure Apple is. The iPad is selling at a pace higher than the iPhone did, for example.
Has any company in history been so large and yet so reliant on a single product? Because of this I am fat to nervous to invest in apple, despite loving their products.