Publishers want universal e-books

The industry-wide struggle over e-book formats continues, despite the fact that publishers are inundated with choices over how and where to distribute their e-books.http://feeds.feedburner.com/~ff/rss/...?d=yIl2AUoC8zA http://feeds.feedburner.com/~ff/rss/...?d=7Q72WNTAKBA http://feeds.feedburner.com/~ff/rss/...ik:V_sGLiPBpWU http://feeds.feedburner.com/~ff/rss/...?d=qj6IDK7rITs http://feeds.feedburner.com/~ff/rss/...ik:gIN9vFwOqvQ
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I can completely understand why.
While I support the idea, I also see where companies would be reluctant to switch from their own proprietary formats.
If there is money to be made, why would they want to miss out?