Did you ever wish you could display a Google Maps map view—with custom data—on your own web page? No? Well, maybe you should go take up geocaching or something. On the other hand, if it sounds like something you'd like to do, read on... New: myGmaps enables you to create, save and host custom data files and display them with Google Maps. Visit myGmaps.com for custom Google Maps. Note: The Unoffici