I think you can actually ... I'm not exactly clear on the relationship between the OpenZaurus project and, for instance, Familiar Linux. I assume the OpenEmbedded system can spit out an iPAQ build too eventually?

I think I'm leaning towards this approach at the moment. That way I'll have options. I can choose to reflash it as Windows, but if I get annoyed or just want to experiment, then I could load Linux onto it.