Conclusion: So has losing the wires helped? Most definitely, its always nice to declutter your desktop. It's also helps when it comes to using it with a laptop if you travel a lot as no wires means no getting tangled at the bottom of the bag. Installation is easy and reported difficulties with the first Mighty Mouse being difficult to use are unfounded once again.
Pros: No wires, easy setup
Cons: Expensive, you'll have to buy batteries every now and then