I purchased a diNovo Mini to be used with my UMPC (which lacks a hardware keyboard) and have found myself not using it as much. The device itself is a good size portable keyboard for your HTPC setup but as an on-the-go keyboard it is a bit too big. I do not recommend this for anything else other than HTPC usage. The keys feel a little cheap (when pressed) and take quite some time to get used to. The trackpad is a very nice feature and is very accurate on my screen.

If you can find this on sale and need it go for it, but don't buy it if you are just looking for a luxury keyboard to have in your setup. It can be used with the PS3 but even then the keyboard doesn't provide a fast enough typing speed for me to be satisfied when browsing.