Just like point and shoot cameras, it seems that standalone GPS devices are going the way of the dodo. MRB pointed me to this guide to doing maps on your Android phone. Essentially, caltopo.com (never pay for a USGS or Canada topo or software for those again) and Backcountry Navigator for $11 for your Android. Except for the GPS killing the battery on your phone in minutes, you're all set.
Looks like I should really get that external USB charger I mentioned in the previous post about getting a Garmin watch to last for an entire 100 miler.