So, this blog will now tweet from time to time. And the first synced tweet is about exactly this - the second screen. I Chair a company called Vidiactive and we're involved in 'the space' between traditional TV, internet TV and the second screen. To us the second screen isn't about seeing the same content and the same experience at two foot and at ten foot, it's about using the second screen to enrich and add value to the main screen experience.
Lean forward and lean back; hot and cold media becoming tepid media; this is the future TV experience as I see it.