Canon 60Da Versus 60D

Quote:
"Enhanced noise reduction on the EOS 60Da sensor offers photographers the ability to experiment with the wide array of ISO settings and increased ISO speeds up to 6400 expandable to 12800."

I have a few questions about this camera - I wonder if anyone can help?
I was just about to buy a Canon 60D body today (after a lot of research) and then saw the 60Da was announced.
I intend to use it with a telephoto/zoom lens (50-500mm) and mid range zoom lens (17-50mm) and work on long exposures in dark conditions.

Can this camera help me, or are all of it's night time features geared toward recording cosmic light in particular? Assuming you have the same lenses, will the camera perform equally well as the 60D?

I also read this: http://www.omnitechnews.net/2012/04/02/canon-60da/
Extract from link:
While good for looking at space, Canon does not recommend the 60Da for use other than astronomy, otherwise giving your photos a distinctive red tint.

Surely they might have considered people may wish to use such an expensive camera on general work too?

Thanks!

Ultan

Canon Spec List:
http://www.usa.canon.com/cusa/about_canon?pageKeyCode=pressreldetail&docId=0901e0248051ddd1#