I have a Logitech Cordless EX110 keyboard, using the "generic 101 keys" keyboard driver with QWERTZ (german) layout. The other verbose.log I looked at and spotted the strange keypresses in was one of someone (unfortunately I do not exactly remember whom, possibly Uncle) from eastern europe (where, I think, non-english keyboard layouts are common) and supposedly uses a local keyboard layout there (I have no details, maybe it would be good to examine and log this during runtime, too, if possible).
Edit: Remove reference to uuu, it wasn't him whose logs I was looking at.