Today, ADP unveiled a mobile app that lets clients manage payroll on the go. Run Powered by ADP Mobile Payroll, which is now available for the iPhone, iPod touch, and iPad, is a feature-rich mobile version of ADP's popular desktop software.

Using the app, you can review and enter payroll information, make changes, and confirm funds to be withdrawn. You can also calculate taxes, manage direct deposits, and enter vacation, sick, and personal time. Other handy features include an HR Checkup tool that lets you benchmark your company's practices against other businesses and an HR Dictionary with more than 600 terms and definitions. 

The free app is currently available in the iTunes store. ADP plans to launch mobile apps for Android and BlackBerry devices by year's end, followed by an app that will let employees manage benefits on the go.