Way back when I had a Palm which I loved. I had three before Palm stopped making the organizers. I tried other things but it was years before I found an iPod Touch. I have since added an iPad. I tried FamViewer, GEDViewer and Families on them. My comments on FamViewer are here . If you read the comments the developer tells about GEDViewer which I then tried and wrote about here.
Families is only for Legacy software. It allows you to put your entire database on it, add to it while out and about, sync back to your computer. You need to make sure you have the latest database on your idevice, upload it and sync back BEFORE you change something on your computer. If you take a computer along and forget to sync first there is a problem. I sat through the Legacy webinar on Families. While I like having my whole database I am not comfortable doing the sync thing as a general rule. On a specific trip maybe. Here's the webinar. (Scroll down to April 11, 2012.)
This week I got a new phone, an Android. I had GedStar Pro on my Palm. It is not available for idevices (and never will be the developer says) but it is available for Android. I made haste to install it. It is simple but it has everything. You can look up names, families, pedigrees, descendants. You can view your sources, even the details. On some screens, including marriage and burial, you can get a map of the location. On all the maps I tried it got it right even though my locations do not always conform to naming systems required by my genealogy programs - and which their mapping programs whine about.
The program requires first converting your database. It converts directly from Legacy and The Master Genealogist, requires a GEDCOM for other programs. Once you have that there are several ways to get it on your device but the easiest - which they encourage - is to use Dropbox. The developer's web site has all the documentation and it won't take you long to read the whole thing. It is very simple to use.(Hints: install the program, open it on your device once, then proceed with making the file conversion. When making the conversion save the file to Dropbox rather than moving it there later.)
Families is also available for the Android. Julie Cahill Tarr has written a series of articles on apps she uses for her Kindle Fire (an Android device) here. She discusses Families for Android, the Ancestry app (which is available for Apple and Android) and a couple non genealogy programs she uses which I also use.
