CacheDragon is a sophisticated GPS mapping and location database, and is the first GPS application designed specifically for geocaching. Features:

• Cache Database - The CacheDragon location database includes all of the cache information from the geocaching.com website - the creator's name and notes, hints (normally encrypted, but CacheDragon will display them in unencrypted form with the click of a button), and notes from other visitors - all available at the tap of a stylus.
• GPX File Support - CacheDragon can read GPX files, which are a common format for storing GPS locations. If you're a registered member of Geocaching.com, you can have the site email you (at any frequency you specify, including daily!) a GPX file containing information for all geocaches in your area. You can then send this file to your PDA and have CacheDragon read it - this is the easiest way to keep your CacheDragon database updated. It even gets rid of all of those annoying formatting tags (like "nbsp;" and "amp;" and "[br]") to make the database information more readable. CacheDragon cleans up over 200 of the most common tags, including HTML, ISO, web-forum formatting tags, and smiley-faces.
• Flexible mapping display - Zoom in and out; keep the view centered on your current coordinates, or move around the map with your stylus or the directional keys on your PDA; tap on a location icon to see its name, or click "Info" for the full information screen; view useful information at the bottom of the map (the time and date, your current GPS fix data, your coordinates, speed, heading, altitude, and current battery power.)
• Map Filter - The map screen normally displays all locations in the database, but you can choose to map only locations meeting certain criteria - caches that are relatively new, only caches that you have or haven't visited yet, only caches that have TravelBugs, or only caches within a certain range of difficulty ratings.
• Destination - If you set a location as your destination, the on-screen compass will display a pointer to guide you to your destination. The map screen displays the name of and distance to destination.
• Compass - The compass can be displayed as an easy-to-read full-screen version, or as a smaller version in the corner of your map. You can choose from three kinds of compasses: a "fixed" compass (the top is north, and the directional pointer rotates to show your current bearing), a "rotating" compass (the directional pointer always points up - ahead of you - while the north/south/east/west indicators rotate to show where north is relative to your heading), or a "classic" compass (where the needle always points in the direction of north.)
• Marks - Mark your current location just by tapping "Mark" and inputting its name. Perfect for quickly and temporarily marking a spot that you may want to visit later.
• Tracks - The application will visually mark where you've been and display a trail of your wanderings.
• Icons - You can choose from ten kinds of icons and one of six colors for each location or geocache in your database. When you import a GPX file, CacheDragon will pick default icons for each type of geocache, so you tell what kind of cache it is from the Map screen.
• Color Schemes - Change the look of the map and full-screen compass by choosing one of CacheDragon's many color schemes. You can modify a pre-set color scheme, or create your own!
• GPX File Auto-Import - You can set up CacheDragon so that updating your database is as simple as synchronizing your PDA with your PC and strating CacheDragon. (It will automatically import a file from a specified location on your PDA at program start.)
• Smart Updating - If you input your geocaching.com username into CacheDragon, it will look for your name whenever you import GPX files. So if you log a cache visit on geocaching.com, the next time you update CacheDragon with a GPX file, CacheDragon will note that you've visited the cache and record whether or not you found it, based on your log entry. You can also customize what kinds of information CacheDragon keeps for each geocache, in case you don't want to keep everything.
• Garmin (SIRF) Overdrive - For some reason, Garmin normally lists its GPS units as updating only every two seconds. Actually, this is incorrect - it can update even more frequently than once per second! - and CacheDragon will automatically detect the type of your GPS unit and increase its update frequency. This is an experimental feature - may cause stability issues - but it's included in case you want to try it. (If you don't have a SIRF unit, this option does nothing and won't change your GPS unit in any way.)
• Cache Images - You can make a set of images available in the Geocache details screen just by saving image files named after the waypoint name of the cache. One obvious use: saving images from webcam caches - you can have the exact image you're looking for accessible within your GPS software!
• Encrypt/Decrypt - Decrypt hints left by the geocache creators or encrypted visitor logs with the tap of a button. Also, some people choose to encrypt portions of their visit logs; you can similarly decrypt these logs just by tapping the "Decrypt" button in the log page.
• Odometer - When the Track feature is active, CacheDragon will also act as an odometer, displaying your total distance traveled at the bottom of the map screen.
• Set Date/Time Via GPS - GPS devices are very accurate timekeepers; you can very accurately set your PDA date and time using the information gathered from your GPS device.
• Date/Time/Units Format - You can customize how the information in CacheDragon is displayed based on your preferences: month-first date (12/25/2003) or day-first date (25/12/2003); metric units (meters/kilometers) vs. English units (feet/miles); AM/PM time (6:00pm), military time (18:00), or GMT.
• GPS Satellite Names - GPS satellites are identified by some bland number, like 12 or 23. In case you get tired of just seeing these numbers, I've given each satellite a name based on Greek mythology (Apollo, Demeter, Terpsichore) that may make them easier to remember.

CacheDragon was designed by one programmer (and novice geocacher) who grew frustrated with the clumsiness of having to flip between geocache information in Pocket Word and a GPS application. Designed from the ground-up for the geocaching community, CacheDragon takes much of the drudgery and fumbling out of geocaching with a PocketPC-based GPS device.