Okay, so I investigated this a while ago after continuing to be disappointed at the lack of a wireless version of Apple's full-sized aluminium keyboard, as I love the feel of the wired one, but can't use it in my current setup. Unfortunately I opted for the Logitech K750 solar-powered wireless keyboard and really wish I hadn't; it was premium priced but is badly made which leads to sporadic charging and frequent disconnects (when the battery loses its connection due to the flexing plastic) and it's just a generally miserable affair thanks to badly placed, non-customisable media functions and horrible keys. In fact it's a technical marvel that such flat keys with so little travel distance can feel so mushy and be so unreliable. Since I bought mine the price has nearly halved which kind of tells you everything you need to know about how cheap the damned thing actually is, and I hate it. Anyway, that aside, I'm now once again looking for alternatives; I'd really like a full-sized, aluminium wireless keyboard. Of course a Mac layout would be preferred, but since I don't need to look to type I suppose it doesn't matter if there's a Windows key or not. However I will need to eliminate options that don't come with their own receiver, unless there's a way I can make my own receiver (i.e - pair a Bluetooth keyboard with an inexpensive Bluetooth USB adapter such that it will behave as if it were connected directly?), as my built-in Bluetooth isn't working well at all.