harbourne or ivybridge in other colors?

Yes - they have "seasonal" colors that do go on sale. Here's one in a dark green color (dark olive) that's on sale on the website:
http://www.burberryusaonline.com/product/index.jsp?productId=3098810

I've seen this in the stores on sale as well as some in seasonal colors like purple and a dark blue color.

 

I have seen a dark purple as well...

 

i bought a navy one online. i also got one at neiman - it's an ivybridge that has a jacquard (sp?) design on the outside. . retail for these are $1,495. i know the ivybridges in the boutiques are $995. i'm not sure what the difference in price range is. my navy and jacquard one don't have warmers or additional things to it that $995 one doesn't have.