An anonymous reader writes "Bram Cohen has reduced Microsoft's proposed file-sharing application--codenamed Avalanche--to vaporware, dubbing its paper on the subject as "complete garbage". "I'd like to clarify that Avalanche is vapourware," Cohen said. "It isn't a product which you can use or test with, it's a bunch of proposed algorithms. There isn't even a fleshed-out network protocol. The 'experiments' they've done are simulations.""