I'm impressed. You don't often see big companies with well established niches come around and really innovate, but RIM (Blackberry) has really done it this time.
They're getting ready to release their competitor to the iPad, the Blackberry Playbook and to make sure they have a well stocked library of apps ready they've made an incredible offer. Write an app for the Playbook, get it approved for the store and they'll send you a FREE playbook as a thank you.
The best part... Unlike other(cough cough Apple...cough cough) vendors in the tablet space, Blackberry has realized that developer don't want to have to write their apps 3 or 4 times. They've made sure to include Adobe Air (Flex / AS3) as one of their choices for building apps for their Eco System.
So if you know Flex / AS3 / Adobe Air, you're just about ready to write an App for the Playbook.
Important links for developing Playbook Apps: