Those titanium faced irons could be interesting. How much of the club will be titanium, and how much conventional metal will be very interesting to see. Titanium has been used in drivers and fairway woods because it is resilient even when thin and is still lightweight. But, lightweight is usually not a deciding factor in irons, which is why so many people put tungsten or zinc plugs in the hosel to swingweight the club they way they like. The really interesting question is how close will these clubs come to the maximum coefficient of restitution of 0.830. If they get close or even on it, they could be very big sellers because it will be one way to actually get more distance out of irons without any artificial means (specifically, strengthening the loft and then trumpeting how their 5 iron is soooooo much better than everyone else's). Titanium may become the first true innovation in irons in a long time, though I still think that those all-hybrid sets (Cleveland, Tour Edge, Nickent and Cobra all have them today) are pretty innovative -- considering how much easier most beginners hit hybrids I think that those hybrid sets could really take off.

The flip side is that if the titanium doesn't have much improvement at all, titanium is much more expensive than conventional metals and it could end up being a big flop.

Are they planning on making a player's edition along with a game improvement set? If they do have significant distance increase, it will be interesting to see how many pros start playing them.

It will be fun to watch how these turn out.