GDAL 1.10 was released past April. It includes, among others, the last improvements to PostGIS Raster driver, taking advantage of VRT and MEM drivers. Check PostGIS Raster driver page for further information.

I’m currently working on further improvements to the driver, thanks to Rapideye support and feedback. Apart from that, I’m collaborating with gvSIG CE and QGIS projects. So, upcoming news soon.