Color me surprised on this one. I've rarely had a ballpoint pen perform so well, even other incarnations of the Jetstream. This particular model is called the Uni-Ball Jetstream Sport Color. Besides the fact that it looks cool, it also writes exceptionally well. Many ballpoint pens tend not to lay down a solid line, but there is hardly a break to be found when using this pen. It is smooth and comfortable to boot.
I ordered it from JetPens, where they also carry a blue and a pink barrel. I think I will be getting a lot of use out of this one.