How much time before RSA encryption is obsolete?

Reading this article, I have to wonder at the amount of time we have left before encryption as we know it morphs into something else. We are so heavily reliant upon asymmetric encryption that the effect of it being obsoletes abruptly (not the adjective here) would be something akin to global power failure.

On an unrelated note, Dean Pannell and I are surprisingly quiet in the talkbacks lately on LXer :) Hmmmmm
--FeriCyde