Today Mac World came with some happy news that Other World Computing (OWC) has succeeded in making 6 GB RAM modules for Macbook and Macbook Pro. The RAM will be delivered as a 4GB and a 2GB module. Mac World describes that the modules are working on all Intel chips of the new “Penryn” model and the old “Santa Rosa” model, but that’s not completely true. As far as I know the chips has been called “Santa Rosa” since the first Mac Book Pro models but it’s only models from june and in some cases november of 2007 that are supported according to OCW. On Macbook it’s only models of “late 2007″ that are supported. The cost for the 6 GBs is $480 + shipping (3800 SEK+ shipping according to today’s rates). Right now they have a mail in rebate if you send back your old RAM.