Biggest difference is there are no more breaths involved in it. Just chest compressions. They say the rhythm should be the song "Staying Alive" by the Bee Gees and it's about 60 compressions per minute. It has been simplified a lot and the key, as it was back then, is hand placement for the compressions.
Many places have included training on an AED device as part of their certifications as well. When I first trained on an AED, the hardest part (and really it's not hard) is placement of the contact pads on the patient. The device tells you whether or not you should shock them.