Smartphone blog TamsPPC say they received an email from Palm regarding developer submissions for two devices codenamed Zeppelin and Skywriter.Skywriter could be a Palm 500-style device with Windows Mobile 6.1, and they posted possible mockup of what appears to be a dev unit. There were no facts provided about the Zeppelin, but TamsPPC included a copy of the email they received and think the phones will hit the market in Q3 2008.Stay tuned for more information.