Wednesday, September 29, 2010

MotionX GPS

MotionX GPS transforms your Apple iPhone into a full-featured handheld GPS receiver, perfect for many outdoor activities including walking, hiking, and geocaching (see my recent blog post regarding geocaching). MotionX GPS is very well documented, unlike many -- if not most -- apps. Available resources include a user manual (PDF), online interactive tutorial, video tutorial, and a list of FAQs.

I give MotionX GPS a rating of four-out-of-five stars. My only criticism is two-fold:
  1. “Images captured for photo waypoints will be saved at 640×480 for improved performance (~10% of the full resolution for the native 3GS camera app, or 15% of full resolution for the 3G).” (MotionX GPS User Manual)
  2. Photos taken using the camera feature of MotionX GPS do not include geotags embedded in the EXIF info.

Thursday, September 2, 2010

Geocaching

Geocaching is the high-tech sport where you are the search engine! A handheld GPS receiver and a hunger for adventure are all you need to play this 21st century version of hide-and-seek. I have been a "Basic Member" since 09 August 2003. Initially, I was interested in one type of cache known as a "Locationless (Reverse) Cache"; locationless caches morphed into what is now known as "Waymarks." Waymarking is "a scavenger hunt for unique and interesting locations" around the world; I follow the RSS feed for the Sundials category. My geocaching username is "Geodialist," a hybrid name that reflects my combined interests in geocaching and sundialing.

I found my first geocache recently, a traditional cache named "White Oaks Hollow" hidden in White Oaks Park (shown below). The first time I visited the site, I was within four feet of the cache location but could not find the cache container! In fact, I thought the cache might be missing. I contacted The Goffs, the cache owners, who verified the container was still in place. With a little support and encouragement from "Mr. Goff," I revisited the site a few days later and found the geocache right away. I signed the logbook, exchanged trade items, and left the cache as I found it. Later, I used the geocaching.com Website to log my find.

Main entrance to White Oaks Park, Alexandria, Virginia.

Tech Tips: I used "Geocaching Intro," a free app for Apple iPhone, to navigate to the geocache location. The app is location-aware: It suggested several nearby geocaches I could try to find; I chose "White Oaks Hollow." Geocaching Intro provides a quick introduction that answers the fundamental question, "What is geocaching?" The app works well, although it would be nice if its skeleton feature set were fleshed out with more of the bells and whistles that come with the commercial version that retails for $9.99 (a relatively high price point for an app).