Saw a price drop on this item yesterday at The Good Guys. RRP$49.95 at Microsoft Store online. Was $39.95 at TGG and now $29. It should be available in most TGG store to save on the delivery cost. Sorry to @australian88 who paid $5 more a week ago. Only Greenbox IT is cheaper according to staticICE although you need to pay postage and many would not want to buy from that shop.
Description taken from Microsoft's website:
Contoured and comfortable
This stylish, ultra-thin mouse uses Bluetooth Smart technology to wirelessly connect to your Bluetooth-enabled PC or tablet without tying up a USB port. Its ambidextrous design makes it comfortable to use in either hand, and its BlueTrack technology enables accurate tracking on almost any surface. Plus, you can use it for up to six months without having to change the batteries.
looks like new market price. $28.99 free shipping available on here newegg. $29 in computer alliance.
It's from gg, so not bad for people who needs one. Have enough mice/ mouses myself - is it worth so buy a new one to save a USB port?!