This is interesting, but I'm worried about the way they're implementing the discount. They explicitly don't sell different versions for different operating systems, instead they show a lower price to browsers that identify themselves as running on Linux. Isn't this basically what Amazon got busted with back in the early days? http://en.wikipedia.org/wiki/Amazon.com_controversies#Differ...
We thought about exactly this issue a bit (and even discussed it with some in our community) before we implemented the discount.
What we decided was this:
1) We're going to be completely up-front about the discount and talk to people about why we are doing it.
2) Companies that offer the same piece of software for multiple platforms often split that software into different editions (Nero is a good example)... and then can offer different prices per platform by just adjusting the specific edition's price. Since we allow people to run our software on any platform we support... we can't do that. But we can do something that is effectively similar.
All that said, we're definitely interested if anyone has ideas on how to do this better. This is merely the best that we've been able to come up with so far.
