Support for indexing and searching eBooks?

Hi

I have a technical library of books. Sooner or later I will stop buying paper versions and get electronic books or digital books. However, one of the things I want is to be able to search across eBooks.

X1 does not support .azw/.tpz (Kindle 'Amazon'), .dnl (DNL Reader), .epub (IDPF/EPUB), .lit (Microsoft Reader), .prc/.mobi (Mobipocket), opf (Open eBook), .BBeB (Broadband eBook 'Sony'), .pdb (eReader 'Barnnes & Noble') etc.

But does support .pdf

Is this because some of the formats are propriety? IFilters are not available for text extraction for these formats? Sellent viewers are not available for viewing? DRM prevents text extraction from the eBook for indexing?

With the growth of eBooks, I would think this is an important topic 'support for eBooks' for X1. Support for .epub, .mobi and .azw would be great.

Any thoughts? Any comments?

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