  A new set of equations for relativistic viscous hydrodynamics that captures
both weak-coupling and strong-coupling physics to second order in gradients has
been developed recently. We apply this framework to bulk physics at RHIC, both
for standard (Glauber-type) as well as for Color-Glass-Condensate initial
conditions and show that the results do not depend strongly on the values for
the second-order transport coefficients. Results for multiplicity, radial flow
and elliptic flow are presented and we quote the ratio of viscosity over
entropy density for which our hydrodynamic model is consistent with
experimental data. For Color-Glass-Condensate initial conditions, early
thermalization does not seem to be required in order for hydrodynamics to
describe charged hadron elliptic flow.
