The future of heart surgery may involve this little caterpillar-like robot called HeartLander. It inches along on the surface of your heart and is capable of performing:

ablation for atrial fibrillation
lead placement for biventricular pacing
delivery of myocardial regenerative treatments

Watch the videos and learn more at Guardian Unlimited. Is it just me or does it look really huge and awkward stomping on the pig heart?!