Where do we draw the line on smart devices? At what point does it become silly? Smartphones, tablets, Google Glass, smartwatches, smart-thermostats, and now... smart shoes? The above video shows off the Lechal interactive haptic footwear, which are designed to help direct you while you are out and about. Here's a quote describing them, Although we are poking a little fun at this concept, in reality, this is just the tip of the iceberg for smart devices. Within the next few years we expect an avalanche of these types of devices. Some of them will probably be very useful, and some will probably be pretty ridiculous. In which category do you think this one fits?