Uploading MS PowerPoint files before a WebHuddle can be very slow. As well, because OpenOffice.org is used to transform the ppt files to JPEG or GIF, the fonts can be messed up sometimes.
A small Windows app that programs PowerPoint to export all slides as JPEGs, zips them and uploads them would be nice. It could run as a PPT add-in and as a shell integration feature (right click | Upload to WebHuddle...).
There might even be a way to discover builds and export each slide as multiple slides (one for each bullet).