It is possible to get Google Maps to center upon a set of coordinates, such as those from a handheld GPS receiver.
The syntax is actually quite simple:
Search for latitude + longitude. E.g. “22.4627+112.9176″ will take you to a particular “little” town in China.
Or in URL format:
Update, 2013-12: In the iOS Google Maps App, you can search for an address in the form of 22.4627,112.9176 and the App will find the right location. This is useful for cutting and pasting from your phone’s contact notes. Though, having typed this, I wonder if you can put coordinates in the regular address field…
Or if you want a web page to enter numbers into, this one works pretty well: http://boulter.com/gps/.
I tried that site above first, but I needed the “full” google version so that I could get custom links and other features, so I needed to get it straight from maps.google.com.
ばいあぐら 通販 ジェネリック