At least three new pizza spots are open or opening in Silver Lake.
Andiamo at 2815 Sunset promises delivery on Vespas -- cute touch. Good topping selection, choice of whole wheat crust. Also salads, panini.
Tomato Pie Pizza Joint (same as the one on Melrose) promises New York style pizza, subs, etc. From the state of the space, I'd say it's at least two months away.
2457 Hyperion (corner of Tracy and across from Baller Hardware)
As for Garage Pizza in the Fountain and Sunset minimall, it's coming along -- I'd say a month or two away.