If I were Greenberg, I'd be celebrating too. Think about this gen for them:
1. Profitable over the long term for the first time with Xbox brand.
2. Gained huge chunks of market share and brand awareness.
3. Dominant in English-speaking world where the most cash still rolls in from.
4. In what was their weakest year software-wise from an exclusive standpoint and in a completely awful economy, matched with cheaper and more popular competition (Wii) and redesigned, price-cut, superior technological competition (PS3), they still had an outstanding sales year.
5. In a fall/holiday where their primary competition had a redesign, price cut, Blu-Ray, free Wi-fi, and the Exclusive Game of the Year, they were within a couple percent in sales during holiday time.
6. heading into a year full of nice exclusives, including a new core Halo game and a Fable game and a relaunched console with Natal.
Why wouldn't he be pleased? Microsoft has to be absolutely thrilled with the way this gen is going, especially when you take into account the hardware issues. Even if Sony surpasses them in total sales, Microsoft as a corporation has had a successful generation in every possible way you can measure it.
It's a great time to be a Sony fan -> I know I can not wait for FFXIII and Heavy Rain and GT5 and all the great content headed that way. The PS3 has great momentum and Blu_ray is slowly catching fire and there's lots to be excited about. But it's still not even close to being a great time to be SONY. Even if they start making small profits year-to-year or quarter to quarter, they are in every way possible (Profits/losses, market share, brand cachet, corporate stability, etc. etc. etc.) the biggest losers of this console cycle. The only way they "win" this gen is if Blu_Ray goes dominant and in a HUGE way. Remember they are billions upon billions in the hole this gen on developing PS3 and Blu-Ray (and if you are going to count Blu-Ray income as a plus, you have to count Blu_Ray research/development/marketing/initial losses as a negative as well.)
I'd much rather be in MS' execs' shoes than Sony's right now - even if that would make me fat and bald. (Nice analysis of video game industry there, versus pointless insults by the way. Kudos.)