iPhone Configuration Utility is a tool provided by Apple, that lets you manage your iOS devices, applications and profiles.
It is very useful to copy a compiled application (i.e.,. a *.ipa file) to your device.
iPhone Configuration Utility lets you easily create, maintain, encrypt, and install configuration profiles, track and install provisioning profiles and authorized applications, and capture device information including console logs.
Configuration profiles are XML files that contain device security policies, VPN configuration information, Wi-Fi settings, APN settings, Exchange account settings, mail settings, and certificates that permit iPhone and iPod touch to work with your enterprise systems.
It is highly recommended that you search for the latest version of your favorite search engine
As a reference, as of today (Aug/29/2013), the latest version for Mac is 3.5, and the latest for Windows is 3.6.2.
Deprecated since iOS 8
Alternative tool Apple Configurator (only available for Mac OS, Windows is not longer supported).