I'm not really sure, maybe Gartner has some vague reports on that.
RIM does make money on the use of their Business Enterprise Servers (BES), so in corporate installations they're taking in large sums of money on a per-year basis. Given that, and my assumption of Apple's superior profit per-unit, it might be hard to tell who makes more money on their phones overall.
was Apple making more profit on Macs than IBM did on PCs? I bet they did. But that didn't stop them from going almost bankrupt when that war was happening.
RIM does make money on the use of their Business Enterprise Servers (BES), so in corporate installations they're taking in large sums of money on a per-year basis. Given that, and my assumption of Apple's superior profit per-unit, it might be hard to tell who makes more money on their phones overall.