The latest CDC report on wireless only households in the US came out. Overall, the number of wireless-only households with children increased to 25.9% from 21.3%. Techdirt was wondering if this constitutes a tipping point. Except for social acceptance factors, I don't see the positive feedbacks that normally exist in dynamic systems with tipping points; instead, I think the value proposition of a landline is no longer persuasive.
The more interesting figure in the report is the one below, which shows that 25 year olds are 50% likely to be wireless only. This is clearly something that should be worrisome to telephone operating companies, since this is the demographic that defines their future.