There is no question that 2010 is going to be a big year for Google’s Android operating system, which means it is also going to be competing with Apple’s iPhone for developer attention next year. Apple’s iPhone ecosystem, so far has an advantage. Google has some teething problems it needs to resolve..

The competition between these two ecosystems is what prompted me to ask Menlo Park, Calif.-based startup oDesk for a historical comparison of the number of iPhone and Android jobs listed on their marketplace. oDesk is a marketplace that connects freelance developers (and others) with those with jobs for them. I thought it could be a rough indicator of the developer interest in the two platforms. oDesk obliged. According to their data there has been a slight uptick in the number of Android jobs. iPhone seems to be holding its own. Another data point to note: there are 2071 iPhone developers listed on oDesk versus 624 Android developers.