ArcPad is software for mobile GIS and field mapping applications using handheld and mobile devices. ArcPad provides field-based personnel with the ability to capture, analyze, and display geographic information, without the use of costly and outdated paper map books.

With ArcPad, you can
> Perform reliable, accurate, and validated field data collection.
> Integrate GPS, rangefinders, and digital cameras into GIS data collection.
> Share enterprise data with field-workers for updating and decision making.
> Improve the productivity of GIS data collection.
> Improve the accuracy of the GIS database and make it more up to date.

Homepage :
http://www.esri.com/

DL : by CROSSFiRE
http://rapidshare.com/files/127354157/ESRI54311.rar

UNTESTED