Culling data from the NPD Group sales figures for the DS and PSP and estimating "iPhone game sales using a combination of data made available by Apple and using ratios and calculations from an aggregated set of data [from Flurry's own analytics data]," the group puts the iPhone's game revenue at almost 400% growth in 2009 over 2008.
On the iPhone, this represents a jump from a 5% share of portable game revenue in 2008 to 19% in 2009. In the same time period, Flurry puts the PSP at dropping from a 20% share to 11%. The DS held it's massive lead, but dropped from 75% to 70%.
Though these figures rely heavily on estimation and extrapolation, it appears that Apple has a legitimate gaming platform on its hands. Throw in sales for non-gaming applications and there is money being made on iPhone OS.
Apple's iPad, which will run iPhone OS games, will be released on April 3rd.
Can't wait to hear Sony spin on this one