As of 2/6/2006 - most Mac users are able to sync via USB or Bluetooth but not through both - it seems to depend on where the product was intended for (Euro or Asia) but it seems to be able to sync through one or the other.As for the address book problem (s), Motorola has also updated the software along the way but unlike computer OSes, it's not always readily apparent. I'm not exactly sure if the reviewer with the multiple address problem has tried this:"Just change the "sort by" option in the address book setup to "Name". Then add numbers to the names instead of making new entries."That sounds like it should resolve it.There is one other caveat. If you want the iTunes software in the phone, the US version right now does not come with it and neither does the Euro version but apparently the Asian/Middle East version do ... huh? Yea - who knows what's going on.Still a great phone - just too much work for everything :-)