Apple Thoughts: Apple Updates Polycarbonate Macbooks

"Apple released MacBook SMC Update 1.3 on Wednesday. The update improves startup time when running on the laptop's battery, and improves performance for the white MacBook (early 2009) when running on battery power. MacBook SMC Update 1.3 is available for download at the Apple support Web site."

Startup times were slower than they were supposed to be so this update fixes that problem. You can find out if your Macbook is affected by checking at the Apple support site.