On the other hand, if it even works a little and is present in an actual mass-market product, it's head and shoulders above a long line of half-baked initiatives or alternative technologies AMD failed to bring to fruition.
That's not to say other companies don't, but for some reason AMD deemed it fit to publicize more than its share of pointless pursuits.
Isotopically pure wafers, Z-RAM, Torrenza, probably its advanced synchronization facility, the Griffin core.
T-RAM?
Will using ASIC high-density libraries for Excavator will see the light of day?
Technically SSE5 did make it into a product, sort of to the detriment of the product it appeared in.
I'm sure I'm forgetting something.
edit:
One thing about RCM is that it seems they are supposed to be tuned to a target frequency. Can that tuning be adusted?
If not, it would seem by adding it, AMD would have admitted there is no unexplored clock speed frontier beyond it, and that BD was probably unsalvagable.