Since Hawking, black holes aren't really black. They do emit energy. Their effective temperature is inversely proportional to mass so that black holes of a few solar masses have temperatures on the order of micro Kelvins. Black holes of this size have a lifespan longer many times the age of the universe, consequently Hawking radiation does not have any astrophysical significance.

The black holes to be created in the laboratory are hot and decay rapidly. (We hope. [img]/phpBB/images/smiles/icon_smile.gif[/img]) Black holes are one of the few places where quantum mechanics and general relativity meet, so being able to test "quantum gravity" in the lab should open up new doors.

Neutron stars don't evaporate like black holes do. Hawking radiation, the cause of the evaporation, requires an event horizon, which Neutron stars do not have.