RIM has been on the lookout for iOS developers to bring BlackBerry Mobile Fusion to the iOS platform. There has been hope that the popular BBM application would be ported to iOS, but it is unlikely we will see this happen in the near future.The application is expected to hit the Apple App Stores before the end of May. RIM has also confirmed this report with the following statement:
"As you are aware RIM announced BlackBerry Mobile Fusion on November 29, 2011 and the job posting you are referencing is to help continue the development of this product offering,” a spokesperson for the company said. “In order for BlackBerry Mobile Fusion to perform advanced management functions for iOS devices, RIM will develop an on device client to be included as part of the overall solution.”
source - CrackBerry