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valve_head2 Today Valve Software officially announced that its Steam digital game distribution platform will be coming to the Macintosh in April. But they are not stopping there. Macintosh owners who have already purchased the PC version of compatible Valve games (those built on the Source engine, such as Half-Life 2, Portal, and Left 4 Dead) will get the Macintosh version free. (And this will continue into the future, too: buying a new game will get you both versions from now on.)

Imagine if buying the Kindle version of an e-book bought you the eReader version, too for one price—and Mobipocket, EPUB, and PDF versions as well. Baen does something like this, of course—when you buy a Webscription e-book, you get it in all formats they offer, and can redownload it whenever you need to—and Fictionwise does the same thing for its DRM-free “multiformat” books.

But as Steve Pendergrast has said, publishers regard each e-book format as a separate “edition”—so if you buy a DRM-locked title from Fictionwise, you must choose which format you want at time of purchase—and if you buy a Mobipocket book but later decide you need it in eReader, your only choice is to buy it again.

This “Tower of e-Babel” makes it terribly difficult to future-proof your purchases. If the next reader you buy does not read the format of your existing library, your only option is generally to crack the DRM and convert your library to a new format.

Of course, Amazon and other big companies are banking on this, trying to lock customers into their own formats so they have less choice when it comes time to upgrade. This is one of several factors that may be holding the e-book market back.

The sooner publishers get a clue and start letting us buy the book in a way that will let us use it in all devices we own, the better. At least Valve is going to let us do that for its games.

 
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