CMOS have bad press in astrophotography, but some new ones are quite interesting...
Like
Ruby line from e2v - the EV76C660 has > 80% QE max and around 3e read noise
QE chart. If the rolling shutter won't make problems in planetary imaging - it could be a next big thing after ICX618... but what about also cooled for DS imaging? Small objects, like planetary nebulae on high resolutions. Sun in H-alpha could maybe use optional lin-log response. I should have a camera with current Sapphire sensor for tests soon. Maybe the Ruby sensor could be Attiked if it would work nicely?
Also H-alpha solar images want a big diagonal of
CMV4000 - which should be available from Ximea (USB3), Basler (GigE) at around 1500-1800 EUR... but still they aren't ready (Basler changed from Q1 do Q2 2012).
And maybe for fun
this monster - maybe it could be usable with lenses? As a asteroid / comet catcher? 2.63° x 1.87° 0.95 "/pixel for 14" Hyperstar (that can do "up to 42mm possible with some vignetting")