Recently, David Wood shared a couple of interesting numbers on his blog on the importance and relation of smartphones compared to 'ordinary' phones. In his post he says that while smartphones only account for 10-15% of sales units, the sales revenue is between 20-25% and profits may even exceed 40%.
So far, I wondered if big mobile manufacturers are mainly working on smarthphones as a way to secure their future by developing new features on these platforms and then work on finding ways of implementing them on cheapter platforms. These numbers, however, suggest that even for their running business, smartphones have a major impact on the bottom line, despite the small unit numbers.