BlackBerry's first DevCon Asia took place from the 13th to the 14th of January 2011 at Bali Indonesia. This event hosted the announcement of BlackBerry OS 6.1 which was presented during the keynote at the opening day.
Version 6.1 is said to build on Blackberry OS 6 and introduce some new features for developers to take advantage of. As you can also see from the image above some of these features are.