Just what does Cunningham mean for Claiborne and Rita?

In my first read of the Supreme Court’s Cunningham decision (essentials here), I made particular note of this line: “Booker‘s remedy for the Federal Guidelines, in short, is not a recipe for rendering our Sixth Amendment case law toothless.”  As evidenced by my Boyd bemoaning (here and here) and my complaints about continued reliance on acquitted conduct (details here and here), I think most district courts and really all circuit courts applying Booker reasonableness review have essentially cooked up post-Booker doctrines that functionally produce a “recipe for rendering [the Court’s] Sixth Amendment case law toothless.”

For that reason, I read Cunningham as previewing big fireworks in Claiborne and Rita.  (That’s why I initially speculated that the SG might want a GVR after reading Cunninham.)  But perhaps I am over-reading Cunningham, and so I ask informed readers: what do you think Cunningham means for Claiborne and Rita?