I have the same issue (Dell XPS 13, Ubuntu 13.04).
Just wanted to add that the messages in /var/log/syslog appear only when
the laptop's _lid is closed_ (I close it when using an external monitor/keyboard).
When I open the lid the messages immediately and consistently stop.
I guess the lid is messing with the touchpad's sensors.
I have the same issue (Dell XPS 13, Ubuntu 13.04).
Just wanted to add that the messages in /var/log/syslog appear only when
the laptop's _lid is closed_ (I close it when using an external monitor/keyboard).
When I open the lid the messages immediately and consistently stop.
I guess the lid is messing with the touchpad's sensors.