Great idea: The nonprofit Center for Bilogical Diversity offers free ringtones of rare and endangered animals. Download their haunting hoots, sensational songs and crazy croaks to your cell phone. Available are calls of the blue-throated Macaw, Beluga Whale, Boreal Owl, Mountain Yellow-legged Frog, Yosemite Toad, or any one of over forty other endangered critters. Ringtones are free and available here. Nice way to build a list as well.
Here are a couple of ring tones that I made last week after being inspired from the Mobile Active conference. Feel free to pass them around and post your feedback so I can make them better :). - Bush, “Brownie, you're doing a heck of a job,” overlaid with Arlo Guthrie’s “The Train They Call the City of New Orleans” (listen: streamingdownload: mp3 | amr)