For that matter, we have BSD code in the kernel already --- the SLIP/PPP
compression code, written by Van Jacobson.
What it does mean is that we would need some way of obtaining the
consent of all of the (at least major) contributors to the Linux
kernel. Since unlike the FSF, there is no single copyright holder to
the code in the Linux kernel, I've always consider the GPL to have more
force by dint of moral pursuasion than threat of a legal lawsuit. So
perhaps something where all of the major contributed PGP-signed some
document would be considered sufficient.
I have a draft of such a document, if people are
interested.... obviously this is something that Linus and the rest of
the major kernel authors would have to agree upon.
- Ted