The Decline of the Mid-Market Cell Phone

Mid-market cell phones and their brethren all have a big usability issue limiting their profitability: they are mostly not designed for the aging user, and such users represent a large market share. Take note, mobile industry execs, and evolve your product portfolios to leverage this untapped market.

I think the article is stating their opinion and being too vague and/or general.  The article needs to differentiate between post-paid subscribers who require credit checks and contracts and pre-paid, flat rate subscribers that do NOT require a credit check or contract.  I think the numbers could be misleading for this reason.