I'd love to hear your history, reasons and current attitude to developing BB apps.
The stories* tell me that the RIM/BB developer experience is so much worse than iOS and Android that it's not worth bothering with (as developers and hence as a viable platform).
* the big ones: http://news.ycombinator.com/item?id=2263882 ("You Win, RIM!") and http://news.ycombinator.com/item?id=2714270 ("Open letter to BlackBerry bosses")