Massucci's Take: How did we ever live without our billion iPhone apps?

From zero to a billion in nine months: iTunes customers have now downloaded one billion applications from its App Store, Apple said Friday in a press release.

How did we live without our Apple (AAPL) iPhone apps 10 months ago?

At first naysayers said, Who needs 'em? Now it's, How many do we need?

A billion sounds about right. Is a trillion out of the question?