Mobile Phones that Sync w/ PIM Software?

Burianski11 asks: "After searching for a phone that syncs with my PIM for a few months now, I'm stumped. I've seen phones that sync with Exchange Server and others whose web-based phone book will sync with a web-based PIM (Sprint has this). Are there any phones out there that will sync easily with PIM software, be it Outlook, Evolution, or something else?"