This keyboard with integrated mouse only came out this week in the UK and I’ve no idea why it took so long because I would have thought anyone with a media center TV were crying out for this form factor.
I highly recommend it as a remote control for a MythTV box. It’s a good small size (it’s smaller than it looks in the picture), the integrated trackpad is responsive and large and has both mouse buttons. There’s zero config needed for Linux (at least in Arch Linux). The range is good. There’s no useless extra media buttons that no-one uses. In short, it’s perfect.