You absolutely do not need to ship the source code with the binary. The source offer is sufficient and the most common way of meeting the license obligation.
> The source offer is sufficient and the most common way of meeting the license obligation.
Yes, you're right. And you play e-mail ping-pong while trying to find the correct person in most cases. IIRC Linksys got into "warmer than usual" water because of not honoring the offer.