Gone are the days when restaurants and retailers needed to drop five figures for the privilege of tracking and ringing up customers. Square's Register app has been letting merchants process transactions with "cheap" consumer hardware since 2012, and now Groupon's reinforcing its own position in the point of sale game with a new iPad-based solution. Gnome, which is expected to cost merchants $10 per month, will let customers redeem their Groupons via Bluetooth, or simply by providing their name at checkout. Customers can receive email or printed receipts, and they can pay entirely with cash or a credit card whenever they're not redeeming a voucher. The company plans to move all merchants over to Gnome within the next few months, so expect a more streamlined Groupon experience soon.