Behodar: I'm at TechEd and I've heard "Internet of Things" quite a bit this year. That implies that it's a separate Internet (one specifically for "things") but it's actually the same Internet that we're using today!
When referring to the 'Internet' what most people really mean is the WWW. The 'Internet of Things' is basically refers to internet-capable devices uniquely identifiable on the WWW. They are actually two different concepts :)