ESRI's ArcPad software is mobile mapping and geographic information system (GIS) technology. ArcPad provides database access, mapping, GIS, and global positioning system (GPS) integration to users out in the field via handheld and mobile devices. Data collection with ArcPad is fast, easy, and significantly improved with immediate data validation and availability

o Use your existing data—ArcPad supports industry-standard vector and raster image display.
o Add data from the Internet—Data can be provided from the Internet via wireless technology.
o Move around your map—ArcPad includes a number of map navigation tools including zoom and pan, spatial bookmarks, and center on the current GPS position.
o Query your data—Identify features, display hyperlinks, and locate features.
o Measure distance, area, and bearings on your ArcPad map.
o Navigate with your GPS—Connect a GPS and let ArcPad guide you.
o Edit your data—Create and edit spatial data using input from the mouse pointer, pen, or GPS.
o Include ArcPad in your GIS solution—Extract, convert, and project your existing data using ArcGIS Desktop or ArcView 3.x.