Ok in all seriousness, this is fucking retarded. I take this as IBM talking to the public like "Oh hey, look at us society, we may not have fancy cubicles like Google, but we aren't conformists like them because we have shorter meetings." SO let's say for instance, they are about to go bankrupt, and they need to come up with a strategy for conserving revenue and increasing profit... in the middle of John Doe's big important "this is how we save the company" idea, if it hits 41 minutes are they gonna "Sorry dude, outta time, oh well i guess we're fucked" No the fuck they aren't.
The length of meetings has nothing to do with productivity. While yes, the approach to the meeting can effect it, a much more reasonable approach would be having all meetings be open-ended with slightly less structure.
"We're IBM, we're new age and bad ass, meetings are for pussies" WTF