Sick of all those one-way chats with your Roomba 700? LG's got you covered with its latest self-diagnosing robotized cleaning assistant. The newest RoboKing -- the VR6172LVM -- will set you back 779,000 Won (around $730), and apparently sports a low noise 48dB design (when it's not talking, we presume). Most intriguing to us, however, is the bot's ability to run diagnostics at the press of a button, enunciating its ailments if a
