I have (or will soon have) a 256MB stick of RAM from my 1.5 Ghz Powerbook. I would like to put it in a 12" 1.33 Ghz iBook (mid 2005). However, when I search a site like OWC or Crucial for the leftover RAM I have, it does not list the mid 2005 ibooks as being compatible with RAM from a 12" 1.5Ghz Powerbook. The odd thing is that when I search for RAM for the mid 2005 iBook, it shows the exact same RAM. In other words, I'm getting conflicting reports on whether this is compatible with the iBook, and I'm looking for a certain answer. Anyone know for sure, or know what the deal is with the conflicting listings on the sites I mentioned?