That's a whole new range of viewing choices for customers, assuming they don't mind the subscription cost.
When Apple TV launched it was a bit limited as far as content. It essentially only gave you access to iTunes and Netflix. Apple announced today that there's going to be just a bit more content added thanks to Hulu Plus, which will now appear on the home page of the Apple TV.
If you want to sign up for Hulu Plus you can do so through Apple TV, iTunes or through Hulu directly, though first time users will want to sign up through HuluPlus/AppleTV for a one week free trial. After the week ends, it's $7.99 a month.