Max Levchin, Slide; founder at PayPal

engineers aren't as good at handing all details, product management is in making sure all bits get accounted for.
iterate over different ideas
hackers make the best PMs - Google does one thing right, having CS majors as their PMs.
product people need to really put themselves in the experience of the audience.
measure everything in order to determine what works. million packages out there --- they all aren't good enough, have to build your own
make your users commit - there is a balance between making things too easy (people will think that the payoff won't be as high) vs. too hard (too much commitment - people drop out)