"Canon Japan has this morning sprung a surprise on everyone with the announcement (in Japan only so far) of the EOS-20Da. This specialized version of the EOS-20D appears to be identical except for the removal of the 'hot mirror', the filter in most digital camera's which removes the InfraRed part of the spectrum. This camera would be especialy suited to astrophotography as well as InfraRed photography, in use as a 'normal camera' it would probably require an external IR cut filter on the lens. In addition the camera has a partially transmissive mirror which enables live focusing on the LCD monitor."
Looks very nice for those who want to hook up a camera to a telescope for some great shots or for use by itself for some great night-sky shots.