Conclusions

Upper limit placed on moon masses in extrasolar planetary systems

HD209458b unlikely to have any prograde primordial satellites over 100km in diameter

Planets beyond ~.4AU from their central star have no maximum moon mass (yet)

Planets in eccentric orbits despin faster, have lower max stable moon mass than planets on e=0 orbits

Future Work

Account for outward migration toward instability for planets which don't despin in Gyr timescales

(maybe it would be nice to eventually) build a full-up orbital integrator taking both gravity and tidal torques into account