RIM's been hyping AIR apps and web apps for the PlayBook for a while now, but there's a chance much bigger things are in the works: BGR says the company wants to add in Java compatibility for legacy BlackBerry apps, and that among other options it's considering using the Dalvik virtual machine found in Android to get there. That makes a lot of sense -- Dalvik is one of the most advanced Java(ish) virtual machines out there, and it's open-source, so RIM could conceivably take it and tweak it to work with existing BlackBerry apps, which are built in Java. Clever, clever.
But that's not all: BGR goes on to speculate that using Dalvik will also allow the PlayBook and future QNX