> Can gpg keys generated on Solaris be used in Linux (seamlessly)?
> Is there any accomodation etc that'd need to be made or can one
> literally copy the keys over and use them?

There is no problem to use gpg-keys on any operatingsystem.
Just watchout for charachter conversions.
Perhaps it will help you to put all keys in a zip (or tar.gz...) file.
This will ensure, that no pragram does automatic conversion.

--
regards,

Jonas Stein <news@jonasstein.de>