I went ahead and bought my first powerbook 12.1in (still sealed in box) and God I hope Apple doesn't have a new 12.1in PB for at least 3 months so I dont feel bad. Anyways, about upgrading ram. I bought a stick of 512mb PNY 2700. I was told by the Apple guy that this ram would work. Is he wrong? It was on sale so its a good price.