I just received the Logitech diNovo Mac Edition keyboard from Amazon. I bought the model with the numeric keypad (not the diNovo Edge). I paid $49 at Amazon, compared with the $99 retail price, by the way.
I like the feel of the keys - nicely contoured. The spacing seems a little wider than the Apple aluminum keyboard and they require a bit more force to fully depress, but still has a very nice, quality-laptop scissor-style feel to it that I like so much. It's quiet to type on as well. While the keyboard has a standard "extended" layout, the frame around the top and sides is very thin, so the keyboard doesn't take up too much room.
The glossy black and matte silver finish is very sharp.
Big thank-you to Logitech for
not making this Mac-specific keyboard white. The finish is quite similar to the Logitech Revolution line of mice; I'm using a Revolution VX mouse and together they look like a matched set. Plus, the keyboard looks very nice up against my Dell 3008WFP monitor, which has a black and silver finish as well. Aesthetically, it looks better than the silver and white Apple keyboard did.
The feet on the keyboard are very grippy (at least for now), so there's no unexpected sliding on my desk. Very nice.
The only thing that would have made it better would be for the keys to be backlit. But since this is a wireless keyboard, I suspect this will not be an option for quite some time considering what it would do to the battery life.
The Logitech software for the keyboard allows for customization of the function keys, which for the most part replicate the layout of the Apple aluminum keyboards. I've never had too much trouble with the Logitech software, though I know many have. It comes with the latest version, which seems to work fine on OS X 10.5.8. The only significant shortcoming of either the keyboard or the software is that the Option-Eject key combo doesn't seem work to open the tray on the lower optical drive on my Mac Pro. It just opens the top drive instead as if the option key wasn't pressed (yes, I've tried the other Option key, too, in case one was defective).
The receiver dongle isn't the new "unified" keyboard and mouse receiver that Logitech is using on some of their newer products, but it's a minor negative. Thankfully, my monitor has 4 USB ports, so the hidden bottom two are holding one RF receiver for the mouse and one RF receiver for the keyboard. Additionally, since virtually all Macs made in the last 3-4 years have Bluetooth, this keyboard could have been designed as a BT keyboard, eliminating the need for a separate receiver altogether.
So over all, I'd give this an 8 out of 10. Slight point loss for the lack of Option-Eject and lack of either bluetooth or the new Logitech unified RF receiver technology, but otherwise it's a solid keyboard and well worth the $49 I paid.
Edit: I just checked Amazon as I was going to put a link, but the price has gone up since I ordered mine last week. It's now $78.95, which seems a bit much. If you can find it for $59 or less, I'd say it's worth it. I might think twice before spending $80 on a keyboard that wasn't one of those steel-and-spring old school style keyboards.
