The holiday season has put Rockliffe Systems in a very giving mood. They have decided to give away 10 copies of their popular application/service AstraSync 4.0. If you don't already know about AstraSync, its a tool that synchronizes your email, calender, contacts from mail services such as Exchange, FirstClass, and Google to your BlackBerry. Essentially, the service gives you all the benefits of BES on your BIS service. Then contest is simple. Register with AstraSync, download the trial version (you will be provided with OTA download link), and send message to from the refer a friend option in the main menu. Only one entry per person, multiple entries will be deleted. Contest ends December 24th and the winners will be notified by email in the new year. AstraSync is compatible with any BlackBerry running OS 4.2 or higher.