I just read this annoucement about Apple lifting restrictions on its third-party developer guidelines with direct implications for Adobe’s Packager for iPhone.
http://blogs.adobe.com/conversations/2010/09/great-news-for-developers.html
- I just want to know what kind of applications can be built using this packager?
- Can I build applications using Flex/Actionscript and convert to iphone apps using this packager?
- What effect do you think it might have on programming apps using Objective-C?
Some of your points seem to ask for opinions but most of your questions would best be served with their FAQ. http://labs.adobe.com/wiki/index.php/Packager_for_iPhone:Developer_FAQ
IMHO for this one
Fewer people will attempt to learn Objective-C and may also not start using Xcode.
Update 10/24/2011
It would seem that adobe moved the link, so here are some others to get you going:
http://blogs.adobe.com/cantrell/archives/2010/09/packager-for-iphone-refresher.html
Developing for ipad
http://blogs.adobe.com/flashplatform/2010/01/building_ipad_apps.html
Developing for iOS using Flash Professional
http://www.adobe.com/devnet/logged_in/abansod_iphone.html
How to use Adobe’s iPhone Packager without an Apple Developer Subscription
http://www.instructables.com/id/How-to-use-Adobes-iPhone-Packager-without-an-Appl/