How modern technology saved my birding in SoCal

Once or twice before I've written about the usefulness of smartphones while birding. I personally own an iPhone (currently the iPhone 4 on AT&T) and use it nearly every time I'm in the field. Usually it's just to check CTBirds reports to see if anything really good has been reported. But the iPhone has many, many more uses for birders. I'll use my recent trip to Southern California as a prime example because never before had I needed to rely so heavily on the device. My original itinerary was: 2/17 - Pine Valley for Bell’s Sage Sparrow, Salton Sea for the rest of the day 2/18 - Santa Cruz Island (via boat) 2/19 - Los Angeles for Spotted Dove & Red-crowned Parrot, Mount Pinos for White-headed Woodpecker -OR- Santa Cruz Island if the previous day's boat trip was canceled 2/20 - Inyokern for Le Conte’s Thrasher, Onyx for Williamson's Sapsucker if time allows (not a high priority) and Bakersfield for Spotted Dove if still needed then drive back to San Diego ...