Many already know this except that it's meant for both creating and consuming content. You're thinking too small. The problem is that Apple has no deals in place for this device with the exception of books, newspapers & magazines (probably). There are no significant deals for subscriptions in place (there will be) for music, TV & movies.
This announcement in late January will be monumental but you won't see the true effects until 5-10 years from now. There is no immediate payoff in being an early adopter. Why:
-this is a 1.0 of the OS and it will eventually replace OSX as we know it. Apple will be basically rebuilding the Mac OS creating an end-around Windows to be the dominant OS through iDevices. The iPhone & touch is just the beginning.
-no subscriptions
-it is a closed system for now
There have been plenty of subscription rumors.