Android Lollipop is enjoying its last, shining moment in the sun before Marshmallow arrives in earnest. Google's not-quite-current operating system now accounts for 23.5 percent of active Android users, a healthy 2.5-point boost from what you saw just one month ago. That's still trailing behind Jelly Bean (30.2 percent) and KitKat (38.9 percent), but it's clear that all those new devices and upgrades are starting to add up. The real question is whether or not that momentum will last. Marshmallow is arriving relatively quickly, and shouldn't suffer from the early performance and battery life woes that kept some people from upgrading last year. If the newer release catches on quickly, Lollipop might not reach the lofty adoption rates of its predecessors.