Hi, I am in search of an iPad app that does powerpoint presentations natively. All my lecturing slides would be in .ppt files and has simple transitional and animation effects. Does Apple's Keynote support opening such powerpoint slides natively and allows for presentation mode where each bulletins on a slide are displayed one at a time on mouse click like it would be if the presentation was done on the PC? I do not require much special features, just displaying of some simple data graphs (I am teaching economics), simple basic transition effects from one bullet point to the next, and a little bit of basic animations (e.g. some bullets spiralling in, etc). Thanks in advance; I would like to hear from someone first before spending on the purchase.