I like the Logos thick client and I like having books installed locally for fast retrieval and offline viewing. Yet, I don't like the resources spent while logos is indexing. It slows down my older computers immensely. Instead, why not have searches query indexes in the cloud and return references to books that I have locally. The actual processing will be done on your super fast servers, instead of the index on my old tired pc, but the links returned will open my local copy of the book. In addition you could return top matches that are not in my library with a chance to buy it of course.