Here is an interesting Kickstarter project. Connectify Switchboard is trying to raise $100,000 for a project to build their software that aims to improve Internet speed. The software achieves the faster speed by utilizing all of your connections to the Internet and making them available for improved downloads and uploads.
The Connectify Switchboard Kickstarter project goes on to explain that the improved connections utilize Connectify servers with requests and transfers spread across the various connections at the packet level. This breaks it down to a further level than just directing sockets through the different connections. Part of the project will also involve rolling out those servers around the world to truly improve speed so people are physically closer to the Connectify servers.
The company currently has beta prototypes available for Windows and Mac OS X.