Check the full article for how MobileMe went from "very cool idea" to "This is an airplane that's stuck on the runway for hours with no food or working bathroom."
Two weeks ago, Apple launched MobileMe, the successor to its.Mac service, which costs $100 a year. Among other benefits, it can keep multiple Macs, PCs and iPhones in sync. E-mail, calendars and address books are wirelessly kept up to date. Very cool idea.