BlackBerry PlayBook OS and for BlackBerry 10 OS and higher. You should also load up your laptop with BlackBerry tools and plug-ins. You will also need your full source code file, images and icons. RIM has some links to helpful information which you can find at RIM's developer blog.
The Android Port-A-Thon for BlackBerry 10 starts on January 11th at noon and ends on January 12th at 11:59pm. RIM CMO Frank Boulben has said that BlackBerry App World world be filled with 70,000 apps by the time BB10 launches. Will any of them be yours? RIM CEO Thorsten Heins said that the size of an app store doesn't matter and that RIM will focus on the top 200 to 400 apps in each region for the launch of BlackBerry 10.
source: Port-A-ThonRegistration, BlackBerrydevelopersblog via BerryReview