We love capacitive screens as they enable all that responsive multi-touch goodness we demand. But compared to resistive screens, they lack the accuracy needed for, say, stylus character entry on phones. RIM's solution: layer 'em up, and file a patent.
If RIM's application is granted, it would allow a next-generation BlackBerry (something high-end like a Storm 3) to truly offer the best of both worlds when it comes to user input. [USPTO via Unwired View]