Google has updated the developer dashboard with new platform distribution numbers, and they show a nice uptick for Google's latest and greatest. Jelly Bean (versions 4.1 and 4.2) have reached 33% of active Android devices, or roughly one-third of the market. Gingerbread, however, continues its slow slide downward while remaining stubbornly high.
Last month Gingerbread was chugging along at 38.5%, so the last 30-days saw a 2% drop. That's actually a slight acceleration in the rate of decline. Jelly Bean rose 3.4% in last months update, compared to a healthy increase of about 4.6% this time.
Other versions of Android continue to shift. ICS is down a fraction, as are Froyo, Éclair, and Donut. Honeycomb continues to be used by essentially no one. Remember these numbers are now based on devices that have checked into the Play Store in the last 2-weeks, but it's a fair measure of phones and tablets that are being used on a regular basis.