November, 2008: People who regularly convert from PPT for use in online courses are currently almost-unanimously** recommending the following solutions:
1. for simple VIEWING of the presentations: convert to FLASH.
[One recommended free application that does this: iSpring See below for description.]
2. to allow for easy PRINTING: convert to PDF. Use Adobe Acrobat.
3. Best: Make BOTH versions available to students.
** Based on the listserves I'm reading.