McCain may have invented the Blackberry, but today, Obama owns the iPhone, say Portland’s Rick Turoczy who runs Portland’ must read blog, Silicon Florest, a TechCrunch-like website that chronicles the Portland tech scene.

Creating this free iPhone app was a wholly volunteer effort, writes Turoczy.

The application has a “Call Your Friends” tool that helps you organize your contacts by key battleground states — a feature we’re hoping will generate thousands of additional personal contacts. You can also easily mark reminder notes to yourself on which friends you have called, who they are supporting and who wants a reminder call on Election Day.

The information does not leave your phone (so your friends’ and your own privacy are protected) but the total amount of calls the application makes are tallied, so you can keep track of your progress as we close in on November 4th.

While the application is an impressive feat for a volunteer effort what I think may be even more interesting—and [Raven] Zachary, arguably the premiere consultant for all things iPhone, agrees—is the underlying story about mobile app development in general—a development effort that, more and more, seems to be centered around talent right here in the Silicon Forest.

“This speaks to a growing trend in Portland toward mobile app development,” said Raven Zachary. “We’ve really got something starting here.”

[Jason] Grigsby echoes a similar sentiment about the creation of the Obama iPhone app:

“I’m terribly proud of this application. I’m also honored to have been part of making it happen. It’s not simply that we built something that we believe will empower people to bring change to Washington, but it is also the fact that we assembled an exceptional team”.

Lyza Gardner adds, “The amount of energy that went into this was fun to be around. Raven Zachary and Jason Grigsby’s strategy genius, Jonathan Wight’s very powerful development fu, Mike Lee and Tristan O’Tierney’s hacking support, Louie Manta’s visual-zing-wow aesthetics, Aileen Jeffries and John Keith’s many-faceted support, and Dom Sagolla’s tireless testing work. Phew. That’s the lot of us.”

Visit the Obama iPhone app page or to download it for yourself, head over to the App Store.