My son and I have developed an interest in learning to develop apps for iOS, Android, etc. We have been reading and looking into Adobe products because of my sons knowledge of Actionscript. What would be your recommendations to getting started and also what software to focus on and learn?
Software of Interest, but really unsure of what software works and does what to develop apps.
Flash Builder 4.5
Flash Pro CS5.5
you can use flash pro to build apps but flash builder is much better suited to the task; it has better tooling/wizards for building mobile apps and its geared towards the developer rather than the designer (as with flash pro)
as for getting started, there's plenty of content at http://www.adobe.com/devnet/devices.html
So flash builder will do all we need to build a app? Can you use actionscript with flash builder?
yes to both.
if you're going to build iOS apps you'll also need a developer license from Apple ($99), and if you're on windows; access to a mac (to digitally sign apps for iTunes)
for android, you only need a license ($25?) to put apps on a marketplace. for testing or personal use, a license isnt required