Google continues to add to it's online office suite. For serious spreadsheet work, google spreadsheets and even OpenOffice.org still don't hold a candle to Excel, but for the other 95% of us, they're more than adequate. I have a feeling that google's presentation app will be more than most of us need, especially with the added bonus that the presentations already live online.

I just hope there's an offline saving component for those times when you're presenting without wifi.