http://www.connectify.me/switchboard/

Why Switchboard? These days, you've got access to multiple Wi-Fi, 3G/4G, and wired Internet connections no matter where you are and with Switchboard, you can leverage all of this bandwidth simultaneously to speed up video streaming, uploads, and VPNs, too. Once your Mac or PC connects using the Switchboard desktop app to our Speed Servers in the cloud, we do the rest: adding up the bandwidth of every Internet connection your computer has to give you speeds up to 50 Mbps. The best part is, when you join the Switchboard - Early Access Beta today, you're helping to shape this innovative technology, while getting the best price we'll ever offer.