Since learning about Roam mobility, I never travel to the US without one of their plans (a review of their Liberty hotspot coming shortly).
They offer competitive pricing and great customer service. The team over at Roam has made a change that makes me even happier now :
Roam Mobility is now offering more data and cheaper prices
They are actually offering up to 3x more data for the same talk+text+data prices and significantly reduced their data only offering prices.