Less of a big deal than they’re trying to make it out to be, it’s disabled by default and a leftover debugging tool.
If it's a binary and potentially readable, they probably shouldn't include the code switch to enable it. Better it never be in there to begin with.
But yeah, if it's disabled by default and looks like a debugging tool, it probably is.
http://www.tomshardware.com/news/hp-keylogger-debugging-tool...
How many of these "debugging tools" has HP left enabled, I wonder?