Whenever we review a budget smartphone, our job is to weigh the handset's cost against its similarly priced rivals. You'd hope, for instance, that if you spent $500 on a device, you'd be getting your money's worth no matter which manufacturer or ecosystem you chose. If it's only $300, then you have to consider if the particular set of compromises made to reach this price point were the right ones. Acer's Liquid E2 (V370), for i