For whatever reason, finding accurate coverage maps from each carrier is actually pretty difficult, and the way Verizon scales its map doesn't play nicely with our image slider tool. But you can eyeball the side-by-side image below to see how Fi's coverage compares to Verizon's footprint.

It should also be noted that nationwide maps don't provide the best representation of hyperlocal coverage — how a particular service will perform at your exact home address or workplace. Google actually has a pretty great tool that lets you drill down to your exact area and what kind of service you can expect there. According to the tool, I'll get 3G service with Project Fi in the suburbs of New York City, which isn't quite as good as the speedy LTE service I can get from AT&T or Verizon in the same area. The nationwide comparison does show where Google Fi has large gaps in coverage — Montana isn't a great place to be if you're hoping to make use of the service.

While Project Fi is very limited right now, it feels a lot like Google's rollout of its high-speed Fiber network, which started out slow and is gaining traction as more cities are added to its roster. Google's big developer conference is scheduled for the end of May — we'll certainly hear more about Project Fi there.