The newly discovered Higgs boson h^0, being lighter than the top quark t, opens up new probes for flavor and mass generation. In the general two Higgs doublet model, new ct, cc and tt Yukawa couplings could modify h^0 properties. If t --> ch^0 occurs
at the percent level, the observed ZZ^* and gammagamma signal events may have accompanying cbW activity coming from tbar{t} feeddown. We suggest that t --> ch^0 can be searched for via h^0 --> ZZ^*, gammagamma, WW^* and bbar{b}, perhaps even tau^+tau^- modes in tbar{t} events. Existing data might be able to reveal some clues for t --> ch^0 signature, or push the branching ratio B(t --> ch^0) down to below the percent level.
