I have the same question.  Would love a solution.

I tried this, then opened form in Reader and received this error message:

AH!Okay. I have both.  What do I need to do in Adobe Acrobat Pro to make the form work in Reader?

So does this mean if I create a form in LiveCycle it is useless unless the user of the form has Acrobat Pro?  I intend to create a form that could be emailed to many different people outside the organization.  They will most likely NOT have Acrobat Pro.  I would want them to be able to save the form...