a.. What is the best format?
I have had good results using H.264 .mp4 files.
b.. How does one upload to an Ipad outside the Itunes app.?
Post the file to an ftp location then send a link for download.
There are iPad encoding presets in Adobe Media Encoder CS5.5. If you are using the CS5 version, you could still use the information in the CS5.5 encoding presets to inform your choice of settings. Just download the Premiere Pro CS5.5 trial version.
Thanks for your answer. I found out that you can download the video from a Windows PC to the Ipad via that "dreaded" software "Itunes".
Select FILE/ADD File to Library then sync the ipad. MP4 format displays well on the Ipad.