I have the Logitech diNovo Mini and also the Logitech K400. I like the “look” of the diNovo Mini — it doesn’t look out of place sitting on a coffee table in a living room. But it is flakey and frequently drops the connection. Getting it connected again is simply a matter of unplugging and replugging the dongle, but it’s a nuisance. I think this is mostly due to the fact that it uses Bluetooth I put up with it for the elegance of the device.
The Logitech K400, on the other hand, is pretty much rock solid. Instead of Bluetooth, it uses Logitech’s own wireless technology — the Unifying Receiver. It never drops, and it the touchpad is much more accurate. The keyboard is close to full-size, but it’s more like 3/4 size. I think I bought for $30 or so on sale. I keep it tucked away and only use it when I need to do more “lengthy” tasks, or if I need to use F keys (which the diNovo lacks). Plus there’s a switch to turn it off when you’re not using it, which is nice. My only criticisms is that they keys are a bit cramped and mushy for extensive typing (but fine for HTPC use). The right click can be finicky unless you press it pretty deliberately.
Lenovo also makes a small multimedia keyboard/remote that competes with the diNovo. Never used it, but it gets good reviews. Get the backlit one.
I considered the IOGEAR keyboard when I bought the diNovo. Never used it, but it seems like a solid recommendation.
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