More and more people are taking mobile video seriously. While you’re still not able to achieve the same quality as shots made with professional and dedicated cameras, the little phones are pretty capable. All the more so if the image is stabilized with something like the iStabilizer Dolly, pictured above. It’s a combination mini-dolly with an articulated arm that lets you track horizontally at almost any angle. As long as your device is less than 2.75 inches wide, and your surfaces smooth, you can get stable, pro quality footage. You’d normally have to pay $65 for this device, but today’s deal brings it down to $40.