  Computational and theoretical developments in lattice QCD calculations of B
and D mesons are surveyed. Several topical examples are given: new ideas for
calculating the HQET parameters \bar{\Lambda} and \lambda_1; form factors
needed to determine |V_{cb}| and |V_{ub}|; bag parameters for the mass
differences of the B mesons; and decay constants. Prospects for removing the
quenched approximation are discussed.
