iPhone Life - Best Apps, Top Tips, Great Gear

A scientific calculator was added to the iPhone and iPod touch with versions 2.0 and later of the OS. Among its functions is a random number generator. Press the “Rand” key at the bottom of the screen and Calc displays a random number with 15 decimal places, between 0 and 1. Developers could use this feature to create registration numbers; regular users could use it to create truly random passcodes or passwords. For example, if you wanted to create a random eight digit password, you could hit the Rand button and use the last eight digits of the random number for your password.

In this article, I explain the recently-released "Safari Download Manager", which (particularly with the external iFiles application) adds a convenient way of adding a download manager to Safari – on jailbroken phones. I also provide a very thorough comparison to iCab Mobile and VanillaSurf, the two (highly recommended) third-party Web browsers that also have a download manager – without having to jailbreak your phone. Finally, I also explain how you can save and, later (even without direct Internet connection!) read Web pages in the latter two Web browsers. (You, unfortunately, can’t do the same in the new plug-in.)