1Password for the iPhone is a tool that lets you record user names and passwords for Web sites, along with free-form notes, and store them securely on your iPhone. If you approach the mobile edition of 1Password thinking it will be a clone of the desktop application, you’re going to be disappointed. The iPhone version lacks many of the features that make the Mac version so compelling—there’s no built-in secure password generator, no automatic login to Web sites in your usual browser, but hey, nothing is perfect, and I am certain that in any future versions of this app, these problems will exist no more. Beyond these missing features, one major limitation of 1Password on the iPhone is due to Apple’s rules that don’t allow third parties to directly interact with the mobile version Safari: 1Password can’t send sites’ login information to Mobile Safari, nor can it install a plug-in to allow it to work directly with Mobile Safari, as it can with Safari on the Mac. Given the iPhone’s lack of a copy-and-paste feature, you can’t even use that method of transferring your login information to Mobile Safari—if you have hard-to-remember passwords that you rarely use, you’ll wind up writing them down in order to use them in Mobile Safari, which is hardly an ideal solution. But if you pass these minor difficulties, you will find that is an app that is worth having. All you have to do is download it, and you’ll get my point.