People are starting to complain about the ABX indices and how the limited number of names mean they indices is being pushed wider than fair value due to short selling
http://www.aleablog.com/dont-mark-to-markit/#comment-828
It will be interesting to see how the CDS indices are affected
http://www.noelwatson.com/blog/PermaLink,guid,f5c355be-b7ad-4e93-96b1-4dee8b737444.aspx
On a Markit related issue, some are unhappy that Markit have a monopoly
http://www.alternet.org/story/74510/?page=entire
http://www.irdonline.com/public/showPage.html?page=331456
http://www.irdonline.com/public/showPage.html?page=339382
As someone who had to work with reference data before red codes I see Markit as a good thing