After reading about Google's attempt for end-to-end encryption with PGP keys, I noticed in their FAQ a section about exporting a key generated by their extension for use elsewhere. They say it's possible but that it requires GnuPG 2.1+ wherever you use it.
I had been running 12.04 LTS at the time I generated mine and so my version of gpg was 1.4.x, does that mean I can't import my key into a tool that uses 2.x?