I say shy away from software, because the software numbers aren't nearly as close in percentage error as the hardware ones are. I think any analysis the collective minds (ioi, mrstickball, TheSource, DKII, etc) make could be put into a press release, as well as showing graphs of the accuracy of VGC vs NPD (NA+Canada), as well as possible reasons why the percentage error was greater during certain months.
Threads of Interest:
The Movie Thread: http://www.vgchartz.com/forum/thread.php?id=6880
The Crow Eating Thread: http://www.vgchartz.com/forum/thread.php?start=0&id=3886
The Betting Thread: http://www.vgchartz.com/forum/thread.php?start=0&id=7104
Custom GIFs Thread: http://www.vgchartz.com/forum/thread.php?id=18963
The Greatest Game Ever Conceived On Any Platform
Tag: "I have tasted Obi-Wan's bitter tears"
