My former boss, Jim Fawcette, used to say that if you asked a group of Porsche owners what they wanted they’d tell you things like “smoother ride, more trunk space, more leg room, etc.” He’d then say “well, they just designed a Volvo.”

His words were meant to get us out of letting the customers run our business mode we often found ourselves falling into.

Today, over on Techmeme, I see that the latest uproar is over Facebook’s new design and how Mark Zuckerberg is telling people that he won’t listen to customers. Or something like that.

Before we get deeper into this, remember that Facebook has always pissed off its users. First, you’ve gotta realize that in Facebook’s life it will go through at least seven phases. We are moving from phase four to phase five right now. In each phase change people have gotten pissed off.

Here’s the phases of Facebook:

Phase 1. Harvard only.

Phase 2. Harvard+Colleges only.

Phase 3. Harvard+Colleges+Geeks only.

Phase 4. All those above+All People (in the social graph).

Phase 5. All those above+People and businesses in the social graph.

Phase 6. All those above+People, businesses, and well-known objects in the social graph.

Phase 7. All people, businesses, objects in the social graph.

Phase 5 is known as when Facebook is really going to find its business model. This is why Mark Zuckerberg is absolutely correct to say he can’t listen to people who wants Facebook to get stuck in Phase Four. It was a nice phase, yes, when Facebook only had people in the social graph, but those days are over.

Don’t get distracted by the current design that looks sort of like Twitter. Twitter showed that businesses can co-exist on the social graph along with people. Zuckerberg is smart. He saw that Twitter was going to make a crapload of money (that’s why he tried to buy Twitter) and instead of being depressed by being turned down by @ev he decided to phase shift Facebook.

Zuckerberg is a real leader because he doesn’t care what anyone thinks. He’s going to do what he thinks is best for his business. I wish Silicon Valley had more like him.

Anyway, all those who are saying the new design sucks should NOT be listened to. Yeah, I know a lot of people are going to get mad at me for saying that. After all, how can a blogger say to not listen to the masses? Easy: I’ve seen the advice the masses are giving and most of it isn’t very good for Facebook’s business interests.

When Zuckerberg announced these changes a couple of weeks ago I told him he was brilliant and that his moves this month would be remembered for decades. Decades.

Here’s why:

Let’s say you’re walking down University Ave. in Palo Alto, California in a couple of years (or, really, any street in the world) and you’re hungry.

You pull out your iPhone or Palm Pre or Android or Blackberry or Windows Mobile doohickey and click open the Facebook application. Then you type “sushi near me.”

It answers back “within walking distance are two sushi restaurants that more than 20 of your friends have liked.”

Wait a second. “Friends have liked?”

Sounds like friendfeed. But, because Facebook has the users (it is growing the size of Twitter every 15 days or so because Facebook has about 180 million users while Twitter only has about 10 million. Facebook, at this point, is growing 200,000 to 700,000 users per day. Twitter is growing by far fewer users per day (although its percentage growth is faster).

But don’t worry about the friendfeed copying. Zuckerberg is so close to a gold mine that his metal detectors must be going crazy. All he has to do is figure out how to keep those pesky users from leaving the service.

Oh, wait, they aren’t leaving! How do I know that?

Because my wife Maryam is totally addicted to Facebook. She hasn’t left. She hasn’t slowed down. She just told me she didn’t like the new design and made some noises that she was only going to use the iPhone version (not true in my observations). So, if Zuckerberg didn’t lose Maryam and her friends, he’s safe. He SHOULD NOT LISTEN to those who are saying the new design sucks. It will keep him from getting to the promised land where we mix businesses and people.

Here’s what really is hanging out there for Facebook if Zuckerberg doesn’t listen: billions. Maybe even trillions.

Look at what we just announced to the world:

Yes, we’re having another baby. But look at what did NOT happen on Twitter: not a single diaper company contacted us yet. Not a single maternity clothing company. Not a single car company (yes, we’re going to buy a new one soon). Not a single camera company (already bought a new one for this occassion). Not a single insurance company (I need more). Not a single bank (I need to start saving for another college student). Not a single stroller company (need a new one that can hold two). Not a single vitamin company (Maryam is going through her prenatal vitamins at a good clip). Not a single shoe company (Maryam needs new shoes for pregnancy, and Milan is growing fast too).

That will NOT last.

Imagine we’re on Facebook in a year. Now all of a sudden I can search for all these things and see which items and companies have gotten the most “likes.” Now do you get why Facebook is copying friendfeed?

Zuckerberg is not listening to you because you don’t get how Facebook is going to make billions.

Zuckerberg is right. He shouldn’t start listening to his users now.