This is definitely a topic of much controversy. But, like the posters above, I'm in the "ride it like you stole it" camp of engine break-in procedures. I wouldn't red-line it before the first oil change, but definitely vary the RPMs throughout the first couple of hundred of miles. That means acceleration AND engine breaking, both are good for the engine. Avoid steady speeds and steady RPM if you can, so yeah, go find some hills and make the engine work for it.
Also, I would recommend dumping the factory oil at around 50 miles, along with the factory oil filter. Change the oil and the filter and ride more until you reach 600 miles. Change the oil and the filter again, and follow the recommended service intervals after that.
Now for the very subjective part. I switched to Amsoil synthetic during the 50 mile oil change. I also change my oil filter every time I change the oil. Oil and filters are cheap, engines are not.
Enjoy your new bike, the less you worry about it, the more fun it will be