I do not think you can buy 2GB PC5300 SODIMMs currently. Would the intel macs support up to 4GB of memory when and if they do? The specs says a maximum of 2GB, but I can't tell if that is the current maximum or the theoretical maximum. I noticed that you can get a 2GB PC5300 DIMM for $1100 from Crucial. I guess I won't be buying a 2GB SODIMM anytime soon. Any idea what is holding up the development of larger chips and keeping the prices up?