SERPENT in OpenPGP?

Hi.

Have it ever been considered to add SERPENT to OpenPGP?

AFAIK it's free/patent-unencumbered,... and IIRC the AES process, it was
considered to be even more secure than Rijndael.... of course it's
probably far less analysed than the later.

Another issue, which comes just in my mind.... would it make sense to
add support for stacked encryption?
I mean, having a literal packet encrypted with a symmetrically encrypted
data packet say with cipher A, which in turn is encrypted with another
symmetrically encrypted data packet say with cipher B.
Of course the session key packet would have to be large enough to
provide key material for both.

Cheers,
Chris.