The Smart Dot from Tangram Design Lab (@tangram_design) is a laser pointer you can control with your iPhone 3GS, 4, 4S, iPod Touch or iPad - and a bit more. The laser connects to the 3.5mm jack on your iOS device, and it’s powered by the same. The free Smart Dot App activates and deactivates the laser, but it can also connect with the machine hosting your presentation via wi-fi and act as a controller for your presentation as well. The App also includes a trackpad feature you can use to control the mouse pointer on the machine hosting your presentation. Smart Dot will do all of this for a mere $79.90. A pretty cool little gadget for the road warriors out there.