Oh yeah good point, I always forget about the OATH part of the YubiKeys - unfortunately it's like the OTP feature in that I haven't had enterprise customers ask

Oh yeah good point, I always forget about the OATH part of the YubiKeys - unfortunately it's like the OTP feature in that I haven't had enterprise customers asking me about it at all (they're all hyped about U2F), so I start to forget its there. I'll have to add it in to the article :)