Blackberry recently previewed a service called Secure Work Space which aims to bring a BlackBerry Balance like feature to iOS and Android. Basically, you'll have secure applications for productivity apps such as email, calendar, and tasks. Employees that are part of a BYOD initiative would be able to have separate personal and business apps on one device if using Secure Work Space.
According to CrackBerry, the service will be managed through BlackBerry Enterprise Services 10.
BlackBerry has long been praised for their security features and bringing it to 3rd party devices makes it easy for IT companies who are already familiar with BES to implement it on almost any device an employee may have even if it isn't an actual BlackBerry device.