Does making iphone apps look good on for colleges?

I like to create iphone apps in my free time
I know that this is a highly marketable skill

I was just wondering how it would look to colleges like Stanford that i had the ability to make apps while in high school

Would it increase my chances of admission
My gpa is nowhere close to that caliber(3.3)
But my sat is somewhat close(2170)

My question is will stanford accept me into their computer science mAjor since i already have a marketable skill
Will they overlook the mediocre gpa

Have you actually sold those apps? Are people actually using them?

Merely having the ability to do this won't be that exciting; many people have that ability. And your GPA is worrisome, because it suggests that you aren't up to Stanford's academic standards. They need to be convinced that you can handle the academic demands.

So you're great at apps. What else can you do to offset your not-so-great GPA? You need to make yourself stand out from the crowd, to make an admissions staffer sit up and take notice. It does NOT look good to have great test scores but not-so-great grades, since it suggests that you are not working up to your potential. What special, unique, "different" qualifications can you offer to compensate for that problem?

By the way, note that US schools don't accept people into "majors". They just accept people into the colleges/universities in general, since so many people change their minds about their majors (sometimes several times). Only when it comes to schools of engineering or nursing or something similar do you have to apply directly to, and be accepted by, a particular major. Otherwise, you won't be applying to be accepted by the Computer Science department.

Many do it, not sure why you think just doing that is a big deal unless you were part of clash of clans or something like that.