Just picked up my jeep and the date is 12/04. That sucks.
All the 2005-06 models are affected. There is no date period. That is all bunk. So yeah that sucks.
Sell it if you don't want to be bothered. Since you are aware of it, make the dealer aware of it. Have them pull the OPDA and inspect it and the cam shaft. Maybe (though extremely unlikely) they will fix both. The common reply is that everything is normal. And while wear is normal, the amount of wear we are seeing on the bulk of these units is premature (arguable that we are the vocal minority).
These are cases that are arguably the normal expected wear with the 2005-06 units. Looking at older OPDA's from 4.0's the wear spot is much smaller.
This is treatable and not the end of the world. How effective the treatment is, is still debatable and the potential is still there for failure at any time whether it's 10K, 50K, or 100K. Break in is likely the problem coupled with lower ZDDP levels than the 4.0 prefers. Presumably the gear and camshaft are the same as pre-2005 units and while they have failures too, it is very uncommon.
Do the FogMOD, change the oil to a higher ZDDP formula (VR1, M1 TDT, ZDDPlus) and monitor the OPDA situation. I think gears breaking is uncommon and catastrophic failure is unlikely if you keep an eye on things. Be prepared to swap the gear every blue moon. Depending on what TJJP77 finds a new camshaft and OPDA may be required.