Andy Miller, the former founder and CEO of Quattro Wireless who became Apple’s vice president of mobile advertising and head of the iAd program when Apple bought Quattro in January 2010, reports “AllThingsD” (http://macte.ch/ZmwYk).

The article, quoting unnamed sources, says Miller will beome a general partner at Highland Capital, a Boston-based venture firm that had funded Quattro. Apple will search for a replacement for Miller, whose staff was told of the impending departure today, says “AllThingsD.”

Quattro was a global mobile advertising company designed to “empower advertisers and publishers to reach and engage their target audiences across mobile web, application and video platforms with unrivaled precision, transparency and ROI.” Apple began shutting it down when the coming of its iAds platform.

— Dennis Sellers