Logitech has been making great keyboards and mice for years.  The diNovo Edge for Mac is their newest keyboard and claims to be the most advanced mac keyboard available.  The keyboard is just under half an inch thin.  It boasts a touch disc which acts as the arrow keys as well as a scroll pad.  The keyboard connects via bluetooth directly to any mac, assuming you have bluetooth.  Logitech also says the keyboard has the perfect stroke for typing, providing accurate and comfortable touch to the user.  The keyboard comes with a base station for charging which allows the battery to last for up to a month.  The downside is the price at 159.99 retail.  FOr that, this better be the most advanced keyboard.  Either way it is a great looking keyboard for anyone in need of a bluetooth keyboard.