A recent ABI Research report is forecasting huge progress for Linux as the OS of choice for smartphones, claiming 31% of smartphones will be running it by 2012 thanks to a compound annual growth rate of 74%. Both Nokia and Palm have been flirting with Linux adoption for awhile. In fact, being more of an open product was one of the key changes Palm needed to embrace, according to a certain open letter. The report just goes to show that doing so early will get them on board with developers. Now, the BlackBerry’s fairly closed in terms of its OS and odds are it’s going to stay that way. How much of a lead could open source adoption give Palm over RIM?