Other World Computing (OWC) has announced DDR2
800MHz OWC memory upgrades
up to 4GB for Apple’s new May 2009 white 13-inch
MacBook. Available are:

° OWC 2GB DDR2 800MHz memory module (US$30.99),
you can add to the existing 1GB factory chip for
3GB total memory. This upgrade isn’t available as
a factory option.

° OWC 4GB (2 x 2GB matched memory modules) DDR2
800MHz Memory Kit ($60.99), which is, according
to OWC, 39 percent lower cost than factory 4GB

Additional money savings are available for
customers who take advantage of OWC’s memory
trade-in rebate program, which offers $5 cash
back per 1GB of Apple Factory Standard memory