Gartner says global Android market share will surpass iPhone market share by 2011:

Gartner expects manufacturers such as Samsung to launch many new budget Android devices in 2H10 that will drive Android into mass market segments. Other players, such as Sony Ericsson, LG and Motorola, will follow a similar strategy. This trend should help Android become the top OS in North America by the end of 2010.

Android would remain second only to Nokia.

Totally unrelated link: iPhone is 3% of handset unit volume, 2x profit of RIM, Nokia, Sony combined. iPad next?

[Gartner via Android Central]