I saw the new Nexus 3 before Christmas but could not spot any update offer for users of Nexus 2 on their website... I was rather frustrated at the time as I did not want to spend the full amount for the new version. Today, I checked my ReFX account and there was an option to download the new Nexus Cloud App and, well, to my great surprise when I installed it the first 'available' product to download was Nexus 3!!! I did not have to pay for it and can now (finally!) use Nexus on two computers simultaneously without a dongle.
I am probably the only person on the planet who did not know that the update was free for existing users but I thought I share this anyway... Maybe someone else missed that, too

Cheers,
Matt