To be honest, I can't remember WHEN I've ever used categories on a smartphone...ANY smartphone (and I've used a lot). I'm more likely to use name/number searches. It's just faster. Nokia's "groups" seem to be better geared towards contact HANDLING rather than contact sorting anyway, more like an AD security group. Thought being able to set those groups up in Outlook would be nice, I'm not sure they'd end up with exactly the same sorting I use in my desktop Outlook.