AI (neural networks/fuzzy logic/genetic algorithms) were actually part of my focus at university, and something I felt pretty exited about back then. That never went anywhere afterwards though. The realities in the job market here are pretty much anti-innovation for the most part ("We can't do that - we'd be one of the first companies in germany to work with XXX" is something I've heard pretty much verbatim more than once).

Maybe I should read up on my differential equations and give Kohonens "Self-Organizing Maps" another whirl, just for kicks.