One little nano receiver to rule them all.
The days of wired keyboard and mice are mostly over, even for desktops where having an extra couple of wires isn't a big deal. Unless one's system is equipped with Bluetooth and paired with all Bluetooth devices, wireless keyboards and/or mice will take up USB ports.
While some keyboard and mouse combos (sold as "wireless desktops") can sometimes share a receiver, it's usually of the bulky variety. Logitech now improves upon things by taking its 'nano' USB receiver and making it compatible with a several choices of keyboards (the both ergonomic and traditional choices of K350 and K340) and mice (M705 and M505 for desktops and laptops).
Of course, the draw of the nano receiver are strongest for the laptop market, which rarely needs an external keyboard. And those with desktops haven't been crying out for more compact and portable USB receivers. Nevertheless, the technology for both desktops and laptops are merging, and we're not going to complain about that.
Check out Gizmodo's gallery for more pictures of the new products.

Far from it. Nobody wants to find batteries in the middle of a COD4 fight, and only finds out that he ran out of them and has to drive 10 minutes only to get resupply.
PCs in public spaces also require wired keyboards and mice, because some people will just take with them.
Wired devices are also cheaper.
Unified receiver is a good idea that should have existed long time ago.
Far from it. Nobody wants to find batteries in the middle of a COD4 fight, and only finds out that he ran out of them and has to drive 10 minutes only to get resupply.
PCs in public spaces also require wired keyboards and mice, because some people will just take with them.
Wired devices are also cheaper.
Unified receiver is a good idea that should have existed long time ago.
My point: Wireless has some bugs to work out before I'll cut my cables.
agreed, I hate have to replace the batteries on my wireless keyboard and mouse on my iMac. Thats why ill never use wireless on my gaming pc, i don't want it to die in the middle of a raid or bout of TF2. Also there is the response time issue, there is only one gaming mouse that is wireless and has the same response time as a wired gaming mouse, the razer mambasa and its over a hundred bucks. there is no wireless gaming keyboard that I know of, and if there is its probably insanely expensive.
Even if the batteries never interuppted you on a desktop, it's still a pointless thing to have to do.
Oh, and one more thing. Wireless devices are all USB, and PS/2 keyboards are what's needed to do things like mess with dual booting and all of that kind of low level thing.
Well, those using bluetooth are still probably having to plug in a regular keyboard and mouse due to bluetooth simply not being reliable.
I still don't like cords on mice and I have to wonder why they haven't made these more flexible and slippery in the meantime so they don't stick to anything. Actually I have the MS Sidewinder game mouse for both work and play and even though it's spendy it's not terrific. Sometimes the buttons get sticky and the wheel a bit 'grippy'. You'd think they have this stuff down pat by now especially when you make a $80 product.
Oh well.
Pretty sweet, I guess
I don't plan on moving my mouse or keyboard from where they sit on my desk and the cables don't get in the way of anything or restrict movement at all. There is just no reason to go wireless unless you are wanting to use a large TV and sit on your couch with these devices or something like that.
The majority of users actually still prefer a wired keyboard and mouse.
I had a wireless mouse before, but quickly changed back to my old wired mouse.
Wireless keyboard and mouse isn't as nearly a good of a breakthrough as the LED mouse was!
and if you have a current motherboard that supports usb mouse and keyboards in any mode, the wirelss works just fine regardless of os choice, or even to install an os or go into the bios.... so shut yer yaps unless you truly know what you are talking about, or get a real gaming pc
I think an amazing idea for common mice would be to mix both concepts, the X8 with another which has this nano receiver, have the receiver about double the size, which would total a mere 1/4 a centimeter more at most, which splits in half and has some form of loose wire string out and clip to the mouse for a recharge. There would have to be some form of spring action to rewind the cable back perfectly in place but not pull on the mouse while stretched, but im sure someone can come up with something.