When first rumors of the PlayBook surfaced, many thought that the device would be able to run existing BB OS applications. Unfortunately, this is untrue – instead, an Adobe runtime has to be used to develop apps for the PlayBook.
RIM’s Mike Lazaridis stated the following when asked about when the current RIM OS would be replaced by the system found on the PlayBook:
they’ll be taking the PlayBook’s QNX platform to smartphones just “as soon as [he has] dual core baseband CPUs,” though power consumption remains a limiting factor.
As the PlayBook OS is not downward compatible to current devices, this could mean trouble for developers – let’s see how it will play out in the near future…