In a press release from the European Space Agency, project manager Dr. Stephan Ulamec stated:
Philae is doing very well: It has an operating temperature of -35ÂșC and has 24 Watts available...The lander is ready for operations.
An earlier story in The New Scientist also noted the orbiting Rosetta spacecraft may have located Philae on the surface of the comet (see below). Of course, wherever it is at the moment, it is now communicating with scientists, which is the main issue. However, whether or not this location will permit continued sunlight to charge the batteries is another question that could affect the duration of these communications.