Steve Rubel travels the well worn "what do I have to do in order to not travel with a laptop" path:
I solved the PowerPoint issue by adding two new gadgets. If I plan ahead I now should be able to: 1) export my PPT file to jpegs, 2) stuff it in a photo album and sync it to my phone, 3) using an Apple Composite Cable ($50) connect it to any projector, TV or monitor. The other gadget I picked up is the super speedy Sandisk Cruzer Contour (about $25 for 8gb), which can store the backup preso all snug and encrypted along with a slew of portable apps in case I need to do more with someone else's PC.
Two simpler solutions come to mind:
Either one would be small, light, and - more importantly - allow you to actually get work done if the need arose. I know I'm something of an outlier -I don't mind carrying a 17" MacBook Pro. But heck, if you need 15 gadgets to solve the various "I don't have a laptop" problems, wouldn't it be simpler just to get a small and inexpensive travel notebook?