  We discuss the unification of gauge coupling constants in non-supersymmetric
open string vacua that possess the properties of Split Supersymmetry, namely
the Standard Model with Higgsinos at low energies and where the Standard model
spectrum is always accompanied by right handed neutrinos. These vacua achieve
partial unification of two out of three (namely SU(3)$_c$, SU(2), U(1)) running
gauge couplings, possess massive gauginos and light Higgsinos at low energies
and also satisfy $sin^2\theta_w (M_s) = 3/8$. These vacua are based on four
dimensional orbifold $Z_3 \times Z_3$ compactifications of string IIA
orientifolds with D6-branes intersecting at angles, where the (four
dimensional) chiral fermions of the Standard Model appear as opens strings
streching between the intersections of seven dimensional objects the so called
D6-branes.
