Hello,
A new webtop application has launched today which goes by the name of OpenShow.
OpenShow allows you to create presentations just like Microsoft Powerpoint, although through your web browser and for free!
Try it out at http://www.electroscript.com/openshow/ or http://openshow.electroscript.com .
Please remember this is a BETA version so they could be bugs and not all features are included.
Enjoy 
