I should have known this was going to happen. It always does as soon as I buy software, a new version is released :-) Well, today Nik Software has announced the release of HDR Efex Pro 2. The good news is that since I purchased the software within the last 30 days, I can (and so can you0 upgrade for free. If its been more than 30 days, Nik is offering the software at a reduced upgrade price of $49.00
I plan on downloading the upgrade today and trying it out so I'll post my impressions once I've had a chance to work with it a bit.