The Web Print option in SharkPrint will allow you to print files in these formats:
If you are not using a Microsoft Office program such as Word, you will need to "save as" one of the file formats listed.
Simplified version of Keynote for iPad. Make slides and display them with a VGA adaptor from your iPad to projector. Includes themes, ability to view your presenter notes on the iPad, and swiping to advance slides.
Remote Control for Keynote slides on your Mac from your iPod touch or iPhone. Wifi.
Attend remote WebEx meetings on your iPhone or iPad (iPod Touch-video only-use phone for audio). Shared content, chat. 3G or WiFi.
Adobe Connect - FREE
Watch and listen to live presentations including real-time presenter webcam video and screen sharing demonstrations. You can see who is in the meeting at any given time, and collaborate with others using live text chat. Free.
SyncPad (remote whiteboard) and SyncPad Reader
Shared whiteboard for iPad. Participant collaboration via http://mysyncpad.com/roomname. Saved output via email. With multiple iPads, one can be the presenter ($10 app), and others can be the viewers (free SyncPad Reader). Wifi and 3G.