WPP Friday made a formal written offer to acquire U.K.-based marketing and media researcher TNS for $3.40 in cash, plus 0.1889 shares of WPP stock for each share of TNS stock tendered. WPP, the parent
of MindShare, Mediaedge:cia, MediaCom, as well as Kantar research, initially made a hostile offer to acquire TNS on July 9th.
