I know Blackberry people that have been using this stuff since it was in pager form. I even have a few of those things lying around somewhere. But anyway, the typical Blackberry people I know generally could care less about technology: It's just another business tool. I've seen them switched to WinCE by different employers; they didn't care. And most, if not all, of these devices are corporate issue. I believe RIM to be vulnerable. I think Apple does too. Apple's desire for business inroads is obviously now focusing more on the mobile component. And open standards continue to put pressure on proprietary back ends which should leave less and less to do in the server space. If a big player were to seriously set their sites on RIM, some damage could be done. Technology wise, it's just Corporate Information Management. Very unsexy, but not very difficult. A big account here, a big account there... A RIM job if you will.