Update, 26 Jan 2011: We have now filled the beta-tester slots. Thanks for the great response!
The Sibley eGuide to Birds (for Blackberry) is ready for testing. We just need a few people to run it through the paces on some different Blackberry devices and tell us what works and what, if anything, doesn’t. All levels of bird expertise are welcome. If you own a Blackberry with at least 300 MB of space on an SD card, and would like to help with this project, go to the contact page here (removed 26 Jan 2011) to sign up. Thanks!