In such a case, I think the better reading of clause 6 of the GSL is that it has no application: the GSL defines OGL as "the “Open Gaming License version 1.0″ with Wizards."Not necessarily... if I release my original work under the OGL, and you use it, the only part WotC plays is in holding the copyright on the text of the OGL license itself.
You can tell the blogger is not a lawyer. First of all, there is no longer a d20 license. Second fo all, the OGL is a license entered into with WotC. WotC is 100% within its rights to deny you ever entering into one licensing agreement with them if you enter into a differenet licensing agreement with them.
There is no restraint of trade as both the GSL and the OGL are WotC licenses. You cannot have restraint of trade by denying a company the right to do business with you.
The problem with that thinking is that the SRD is 100% WotC content, and is also the basis of everything licensed under the OGL. WotC placed a virus in the OGL because they own the SRD.
Yes, and the OGL itself is copyrighted by WotC and they can produce a license telling you not to use their copyrighted work.As Brown Jenkins pointed out, there are products out under the OGL that contain 0% SRD or SRD-based content.
9. Updating the License: Wizards or its designated Agents may publish updated versions of this License. You may use any authorized version of this License to copy, modify and distribute any Open Game Content originally distributed under any version of this License.
There's lawyers that have been using the OGL for a while now (Necromancer games, Blue Devil Games). I'm pretty certain they would have managed to figure out by now if the OGL could be yanked out from under them like some folks seem to think. In fact, that's been part of their concern regarding the GSL ever since they've seen it.
The OGL is fine, stuff put out under the OGL is fine, and this is just fear-mongering in regards to the OGL. Until I see at least a couple of lawyers engage Clarke and Justin in a discussion and demonstrate how the OGL can be completely invalidate and people that put stuff out under the OGL screwed, I'm not changing my stance on it either.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.