Starbucks + iPhone + AT&T = Free WiFi

How do you like my equation? I'll simply go ahead and explain it. AT&T, and I have covered a lot of AT&T and iPhone stories these days, have reached an agreement both with Starbucks and Barnes and Nobles to offer WiFi hotspots to their customers.

That's nice but you still have had to pay for that. But apparently all iPhone users can have that service for free. You just have to log in with your phone number and you can surf the internet with no additional cost when in a Starbucks coffee shop or in a Barnes and Nobles library.

How fair is that? Well apparently if you don't own an iPhone yet you can simply switch your internet browser to Mobile Safari and you'll surf for free as well. But hey, it's a secret, don't tell anyone! I wonder how long till AT&T will realize and fix it?