Documents to Go with Exchange Attachments is all grown up, has changed its name to Documents to Go Premium [$14.99 - iTunes link], and now offers support for PowerPoint and Gmail attachments for IPHONE and iPod touch: Edit and create Microsoft Office PowerPoint presentations Edit/add bullets and text in Outline mode (changes reflected immediately in Slide view) Edit/add [...] This is a story by the IPHONE Blog. This feed is sponsored by The IPHONE Blog Store. Documents to Go Goes Premium, Adds PowerPoint, Gmail Support for IPHONE

Source: The IPhone Blog