I have just released version 1.0 of our Horizon Data Interchange utility, TA.Horizon. David Wormuth has been busy adding support for TheSky and Observer Pro to the original support for ACP and AstroPlanner so we can now import and export from four different programs, plus export to the console (for testing or backup).

TA.Horizon is free, open source and licensed under the MIT license.

For more information, please see the project home page at http://tigra-astronomy.com/horizon-data-interchange

Best regards,
Tim Long.