Originally Posted by twerppoet

No problem, but I warn you, Adobe Acrobat (the proper name of the application) is not cheap; which is why I don't have it. Too expensive for casual use.

There are probably cheaper apps, but I don't know of any; at least not any that let you create fillable PDF forms.

Hmmm....thanks for the warning...may need to look at the cost and see and also look at option B.

I would also opt for using existing apps...
How about using Google Documents, creating a form which you can then email it to the participants?
They would be able to reply with their entries to the email you send on a weekly basis...

OpenOffice has PDF form design and is free , although not as professional as Adobe LiveCycle, it does work
The iPad app PDF Expert supports filling in the forms on the iPad with signatures.
Sample below of a form I created and edited in PDF Expert.