Android 2.2 has finally become the majority version of the OS just as 2.3 has hit the streets, Google's latest official data showed. Basing its information on results as of early this month, about 51.8 percent were using the previous version about eight months after it was first made public at Google I/O in May. Owing in part to the limited launch of the Nexus S, only 0.4 percent were using the true latest release.