Apple and AT&T just identified 500,000 alpha geeks for marketers around the world.  What does that mean for  your brand? Piper Jaffray is reporting that Apple sold more than 500,000 iPhones this weekend according to Tom Krazit of Crave.  Here are the details:

• 95% of buyers in NYC and SFO bought the 8GB model (versus the 4GB)
• 50% of buyers were new customers for AT&T (Verizon’s CEO is kicking himself)

If you can engage the iPhone community it means you can have access to 500,000 early adopters.  How?  Start building tools specific to the needs of the ‘instant community’.  How?  Hire guys like us or come to the iPhoneDevCamp in San Francisco this week.