somehow i missed the annoucement by the major router manufacturers that they are supporting the technology you mentioned. (grin) coding packets a 640 megabits isn't particularly hard - off-the-shelf Fiberchannel parts can do 1.02 gigabits (each way) with no trouble (and are used inside at least one "gigabit router" in concert with a GaAs cross-bar switch to make gigabit-capable switching fabric.) [yes, there are other issues in building fast switches.] the general challenge is to make the technology into *products* which work, are scalable, and manage to generate enough critical mass that the technology suppliers will survive. this last point is as critical as the first. Cynicism aside, however, I have been following the MOSAIC/ATOMIC stuff for several years and it is attractive for some purposes. I am hoping for their every success. But I don't think that I'd bet the success of a major internet interchange point on it right now. That is, of course, if I knew it was in there... (big grin) -mo ps - thanks for mentioning the url. makes it easier to track what's happening there.