Not exactly. He may gain from the use of the GPL and give nothing back if he doesn't pass along his software based on GPL software. In that sense, the focus of the GPL is not the upstream developer, but the downstream user.
That's more or less what happened at the start of WebKit. Apple got KHTML, changed a lot of its inhards and published the whole thing back when Safari was launched. A lot of KHTML developers complained Apple's code was very Mac-specific and a pain to integrate back into KHTML.
That's more or less what happened at the start of WebKit. Apple got KHTML, changed a lot of its inhards and published the whole thing back when Safari was launched. A lot of KHTML developers complained Apple's code was very Mac-specific and a pain to integrate back into KHTML.