  We consider certain examples of applications of the general methods, based on
geometry and integrability of matrix models, described in hep-th/0601212. In
particular, the nonlinear differential equations, satisfied by quasiclassical
tau-functions are investigated. We also discuss a similar quasiclassical
geometric picture, arising in the context of multidimensional supersymmetric
gauge theories and the AdS/CFT correspondence.
