I love it. I haven't seen the old Zenter, so I'm not sure what to compare it to. I made and published a presentation, then added a slide. It took a refresh, but this is why online documents are awesome. You can click send and publish the doc, and still edit it.

Too bad a loaded presentation requires a refresh to get the updates. The spreadsheet is really live.

Also, it would be nice to get a web-cam mic input as a presenter.