  I report on first results of the ETMC obtained simulating lattice QCD with
two degenerate flavours of Wilson twisted mass fermions, for which physical
observables are automatically O(a) improved. Recent improvements of the HMC
algorithm allow simulations of pseudoscalar masses below 300 MeV on volumes L^3
x 2L with L>2 fm and at values of the lattice spacing a<0.1 fm.
