Android Jelly Bean Penetration Up Nearly Three-Fold Since Beginning of Year
Pulling data from the Android Developers Dashboard, which looks at devices that have visited the Google Play Store in the past 14 days, Gingerbread is still in the lead, though its share of Android devices has fallen to 38.5 percent. Jelly Bean has picked up the slack, and then some, by climbing to 28.4 percent, up nearly three-fold from the meager 10.2 percent share of the market it held at the beginning of January.
Source: Google

The good news here is that if we combine Jelly Bean and ICS, we find that 55.9 percent of Android users are sitting pretty with a current or semi-current version of the OS. Back in January, such users represented just 39.3 percent of the Android market.
Are you using an Android device? If so, which version of Android do you have?