The reason we've decided that this ASP requirement is legitimate is that it is a matter of requiring making the modified source code available in a case of public use. It extends existing GPL requirements coherently to a new scenario of usage.
It would be wrong to require publication of modified versions that are used privately, but inviting the public to use a server is not private use. -- license-discuss archive is at http://crynwr.com/cgi-bin/ezmlm-cgi?3
