helo! glad to hear you are willing to develop apps for BB! I think a killer app, highly sought after would be to allow installing applications on a BB from a MAC and somethign that will let Mac users tether their BBs as a Modem. I dont think either should be too difficult, since its already possible on Windows...???? and the BB runs on JAVA (please correct me if i am wrong) and Java is supposed to be platform independent...???????

there are other apps which I can think of but are more niche. Mostly rooted in teh film industry. Let me knwo if you are interested in developing such stuff...