A company called PacketHop is working on a mesh technology that routes packets among clients: Instead of routing traffic from one AP to the next, it routes from one user device to the next. The technology is designed to allow users to access a network from farther away from an AP.
It looks like PacketHop is announcing that it acquired some patents from SRI International which has already done some development of a product. It's not clear when this product will be available. (FireTide has also licensed SRI patents for its products, which include a few mesh-like attributes.)