It grows in Jelly Bean, but Gingerbread dominates
The title could be interpreted in several ways, but now it’s just about the distribution of the Android versions. The trends seem irreversible: Gingerbread’s user base is steadily shrinking (down from 45,6% last month to 44,2%) while Jelly Bean is routinely creeping up (just gaining 3% now). That's okay, of course, Android 2.3 is no longer the net of operating systems.
The numbers also show nicely that Jelly Bean isn’t going to take the lead in March yet.