I didn’t know about KatzEye, thanks for the info!
In the installation guide it didn’t look overly difficult, i.e. it didn’t scare me off.
They ship worldwide, so I might give me one for my next birthday. Since that’s in september I’ll look around, maybe there is a camera shop that imports and installs them somewhere nearer to me.
Anyway, I’d like to have one, it would make using my old, pre-autofocus lenses easier.