If you have a DSL line and a 3G line, is there a good way of combining those, so you can use them both at the same time? The goals would be: 1) Utilizing the extra bandwidth 2) A "seamless" fall back mechanism to 3G if the DSL line fails I guess you won't get a faster connections for a single download, but if you have multiple things uploading or downloading at the same time ideally a load balancer should let some of the traffic go through the 3G line if the DSL line is saturated. I have a USB 3G modem now, but I know there are some routers with a 3G modem built in. If the bonding happens on a Mac I guess the USB 3G adapter should work though? Does a solution for OS X exist where my Mac could just do the bonding in software? Are there routers with built in 3G modems that can bond a DSL connection with a 3G line and provide access to that combine line through wifi?