One month ago, Apple revealed its next Mac OS release would be called Mountain Lion upon its debut this summer.
It also allowed eager developers registered in the Mac Developer Program partake in the fun a little early. For the latter camp, Apple is back with a second helping last weekend which was named as Developer Preview 2.
So far, there is no word yet on what has changed in build 12A154q. A scant twenty-six builds from the 12A128p original – as the accompanying release notes have yet to be updated.