With the pace at which many of us live our lives, lists have become life preservers in a sea of tumultuous activity. Software makers learned that early in the development of the personal computer. Hell, it was the cornerstone of an entire hardware platform pioneered by Palm. A problem with PC programs, though, is that you can’t take them with you when you leave your desk. Sure, you can run them on a laptop, but booting one up just to find a list isn’t always convenient. A more flexible place for a list is on a mobile device — on a smartphone, maybe, or on the iPad.
