The Bean isn’t wireless so you’ll need to pair it with a USB cable. | Image: Ploopy Ploopy has announced another open source mouse alternative that skips touchpads and trackballs. While the new Ploopy Bean looks like a tiny travel-friendly mouse, you don't need to move it around. Instead, surrounded by four buttons is a red pointing stick similar to the TrackPoint that IBM included on its ThinkPad laptops long before Lenovo took over the brand. The Canadian company only shares pricing in its l