What's nice about the My Maps option, is you can save your cache data as a KML file, and then load that data into My Maps (all you need is a Google account). Here's a video that shows you how to add content to My Maps:
A while ago, I created a "My Maps" map to monitor my progress on conquering the "The "Lil" Devil Made Me Do It Challenge!" cache. This post describes how I created the My Maps page from my cache data. Now, with Google Maps for Mobile 3.2, I can access my Mt. Diablo cache map from my phone:
And, by clicking on one of the map icons, I can get the cache information:
This is great news. I can't wait to take advantage of the new features in Maps for Mobile 3.2 during my next cache outing.