Yes, I'm sure the Next Bus system that the good folks at WMATA say is coming soon will be fabulous. However, since it is still in the coming soon phase, all it is now is an ad for a future system that also tells you the time. So, don't act like you have discovered something amazing. If you press the button, it tells you the time. And really, between my watch and my cell phone, I got that covered. If you are lacking in time keeping devices, sure, it's useful. But there is no need to hit the button repeatedly over the course of a few minutes. Certainly you may, but don't expect applause or adulation. It tells the time. Really not that exciting. (Yet).
Your fellow rider