I finally got a 4G connection around the U Street corridor in Washington DC today. I was driving through 13th and U (NW) and knew there was supposed to be an updated tower in the area, flipped my Evo LTE into and out of airplane mode and got the fabled 4G. I wish I lived closer to the area, but hopefully soon enough Sprint will light up some more towers. They're sending me an airave in the meantime which is great because my phone is essentially unusable in my neighborhood right now.