No, this is news to me. I'm not surprised though. TM seems to mess with specs any way they can to maintain a claim of being longest hitting clubs. I'm sure some of their technology is valid science, but I have very little respect for them as a company. Changing their flagship driver every 6 months nearly drove them into bankruptcy when retailers wouldn't take stock positions, knowing they couldn't make money on current models when new models came out every 6 months. The people who took over the company have never changed the marketing model that got the company in trouble and it wouldn't shock me at all if Taylormade goes the way of Nike in a few more years.
Unfortunately, there are some other companies who are following the longer is better model, but with some interesting technology that does help in other ways. For example, I'm currently playing a set of Ping G700 irons. The lofts are very strong, a 43* PW for instance. The thing is, the width and shape of the sole helps me get a ball out of the rough better than my 900 HM set and definitely better than my old Titleist DCI set. The other thing is, these irons are hollow and however they are weighted inside, they seem to give be better results on mishit shots than I've gotten from any of my other sets of irons. It's actually a shock to see where my ball goes when I feel a bad hit.
Nothing will ever feel as good as my Mizunos, but for the moment, until my game improves, I'll use the technology to my advantage.
BTW - My 4 iron is 40" long, so Taylormade ain't got nuthin on me. ;-)
Lastly, and on a totally opposite concept, I personally like the one length concept Cobra is selling. I wish other mainstream manufacturers would offer a set. I would love a well fitted set of Mizuno one length irons with something like an HM head. Cobra's offering doesn't seem to come in any longer shaft sizes, so one tall friend bought a set with steel shafts, burned them out and replaced them with graphite shafts an inch and a half longer. It created a lie about 2* upright, which suits him, but i haven't seen the finish set to see whether the change maintained the swingweight well enough to be effective.
I wonder what our clubs will look like in 10 years...???