The strategy of chasing price conscious consumers seems to have failed. Fairly recently, Blackberry was voted "coolest youth brand" in South Africa, while they flooded the market with poorly built, cheap Curves (I had a Curve, which took 10 minutes to boot). As bandwidth costs have come down, unlimited BIS has become less important. And people realise that having to give their phones in for fixing every six months is a poor deal.

I sometimes see the argument that a product being popular in the developing world is a ray of hope but Nokia's decline (despite dominating feature phone market with quality phones), along with Blackberry's decline is a signal that third world consumers are not a long-term cash cow.