The magic mouse had to mention the many shortcomings of the previous mouse "official" Apple ... and it is a cold shower for mac users who, like me, you need a serious device to work everyday. The object is beautiful, it's on! And of course, the touch surface above effectively replaces the horrible scroll ball Mighty Mouse (farewell fouling). So much for the postifs point ... By cons, big disappointment on the laser sensor used, it is obviously very low end and is fairly horrifying when looking a little bit accuracy (I work in DTP). This really is hair pulling! Another disappointing point the grip is very natural, between the weight of the beast, the edges on the sides and the low height of the mouse, it's pretty painful (especially at the wrist). In summary, I highly recommend this mouse, especially since it is sold to a rather prohibitive price.