This was changed in GPLv3. To my reading, section 6(b)(2) means that if you're distributing a physical product, you can just include a link to a URL where the s

This was changed in GPLv3. To my reading, section 6(b)(2) means that if you're distributing a physical product, you can just include a link to a URL where the source can be downloaded for free. You could read 6(b) to mean that you have to offer consumers the choice between physical-delivery-at-cost and for-free-download of the source... but I don't think that's the right reading.