The decision to make iPhoto 2 and iMovie 3 available for download would have been made only at the last moment and after having planned their bundled sale, in conjunction with iDVD.
The news is spread today by some sites dedicated to indiscretions that base their assumption on some obvious clues, including mainly the introduction to a book that explains the secrets of the new applications.
The author, Jim Heid, explains among other things how iTunes, included in the suite called iLife, "remains free for download while iPhoto 2, iMovie 3, and iDVD 3 not only downloadable from the Internet"
At the time of writing the book, therefore, Apple intended to do what several sites had speculated: to apply a cost to have the new versions of the "iApplications".
Why Cupertino has changed his mind and when this happened remains a question that cannot be answered with certainty. According to the sites dedicated to indiscretions Jobs would have made the decision in the first person when he verified how the response from the users had been negative.
The credible hypothesis should probably also be accompanied by another, more "trivial" observation on the economic aspect of the matter. Apple may have calculated that the profits determined by the sale of the iLife package will not be significantly affected by the online availability of iPhoto and iMovie. In fact, those who want to burn their works on DVD will always have to buy iLife which includes iDVD, which will not be found on the net.