Will the 2 plugins work on one site using the same Dev App

UFbook and Comments + Will the 2 plugins work on one site in harmony using the same Dev App info

Ultimate Facebook
Comments Plus
Single site
no Bpress

NOTE: groan the issue with WPMUdev forum post headings remains - ie if you enter less than x number of words it removes the header and replaces it with the first sentence making for ODD threads