DIARBYRAG maybe you can but not everyone has iphoto, plus some of the effects are pretty good, plus it is cheaper then iphoto and it exports it as a swf in one go so you don't have to keep changing apps. and it is not just for slideshows, you can make banners, etc and combined with textosterone it is pretty damn good for the money
but hey you do it how you like, that is the joy of having a mac :-)
and no I have nothing to do with the developers, just a customer
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