And unlike its two midtown tunnels, the Lower Manhattan connection is shut down every night, from 10 p.m. to 5 a.m.

WSJ: PATH's Road Back Is Rocky

The company brings along wireless sharing know-how from its Hotspot product to the project, and promises that with every connection you combine, you'll get a corresponding bump in throughput.

ENGADGET: Insert Coin: Connectify Dispatch lets you put all your internets together into one big internet (video)

Carriers warn that such a tactic could cause massive delays if airlines are forced to remove bags every time a passenger misses a connection or is bumped from an overbooked flight.

CNN: Mineta to outline baggage security guidelines