The developers from Russia made a great success on PowerPoint to Flash conversion technologies called FlashSpring in recent years, which seems really rock solid on the conversion quality. Days ago, they leveled up the simple but powerful converter technology to a series of exciting solutions on PowerPoint to Flash, iSpring. And I had a great test drive of iSpring Pro from its Giveaway of the Day promotion.
I don't care about the such features like "Insert Flash" or "Resources", because its Flash presentation competitor in leading role Articulate Presenter already has better and utility ones. The program instability and output quality is gorgeous on iSpring, also the great compression to output originals PowerPoint to a 10% compaaible file size of Flash. However, it has some backs, such as PowerPoint 2007 support, which looks like what it said in promotion: just "works fine". My PowerPoint 2007 crashed many times, and most animations on SmartArt are not applicable in output. But do you know, iSpring has a iSpring Free available beside its US$199 Pro.
By the way, the iSpring menu buttons were non-intrusive making working with PowerPoint simple. The cool ribbon and tech for PowerPoint 2007 got another full-featured competitor PPT2Flash Professional, who may has a little better support on PowerPoint 2007, at least the instability as I know. If you need more on this point, just give more than a try.