In theory, it's possible to load balance transparently across multiple IP addresses, provided that you have a well-connected VPS in a nearby datacenter to serve

In theory, it's possible to load balance transparently across multiple IP addresses, provided that you have a well-connected VPS in a nearby datacenter to serve as an intermediary. From the world's point of view, you'll be connecting from the VPS's IP address, but between you and the VPS, you can do pretty much anything with the packets. Granted, that's now how dispatch-proxy works.