While Acer's Liquid line of Android smartphones hasn't exactly set the world on fire, the company is proceeding with its rollout with the latest model in the United Kingdom. The Acer Liquid Express (sounds like drain cleaner, doesn't it?) is launching now at T-Mobile and Orange locations across the country, distinguishing itself as one of the only low-end smartphones to offer near-field communication (NFC) technology for quick wireless retail payments.