Owen and Jutta have used Zoho Show for making their presentations in the League of Worlds (LoW) conference. Owen writes about the experience :

My slide show was created in Zoho, and I presented it from there when I did my turn. Two interesting points emerged. Firstly nobody, except those people who already knew about Zoho, noticed that I wasn’t using Powerpoint. In other words it performed perfectly, despite the fact that I was using a wireless connection. Secondly, several presenters have had difficulty with their slides as they moved them from computer to computer. Jutta and I did not have this problem, because our slides lived in the cloud the whole time.

The presentations - Owen's and Jutta's.