Apple's new MacBook and iMacs are solid but merely evolutionary products, argues Wall Street Journal columnist Walt Mossberg. The MacBook is praised for incorporating the MacBook Pro's large trackpad, and being "fast and reliable," booting cold in 22 seconds. It is also described as lighter than its predecessor at 4.7 pounds, and armed with a powerful battery, though likely to fall short of Apple's promised seven-hour lifespan in most cases.
