The Philae is sitting close to a rocky cliff like structure, with 2 legs out of three on firm surface. The surface appears to be rocky not powdery.
The instruments on Philae are firing up to gather as much science data as possible while the onboard matteries are running.
Given that the Philae may be sitting on partial shade there is some doubt as to whether the solar panels can be deployed to extend the power cycle of the instruments' data gathering.
There is some concern that is in the shade of a cliff-like structure.
The ESA team are under great pressure to produce pictures and data from the comet and this is clearly showing up in the professional but sleep deprived presentations.
Short animated sequence showing Philae leaving Rosetta on its descent to Comet 67/P.