Apple ha liberado un update para los que tienen instalado el Preview 2 de OS X Lion. Al parecer este contiene varios fixes pero no es una version nueva de Lion (Preview 3). Simplemente ve a Software Update y descargalo.
From systems that have developer preview 2 of Lion or Lion Server installed, run Software Update and download Mac OS X Lion Developer Preview 2 Update. You must also download Xcode 4.1 Developer Preview 3 available from the Mac Dev Center to build apps with this version of Lion.
Fuente: 9toMac.com
