'Final Hours of Portal 2' now available on Steam

Valve has announced that the once iPad-exclusive, interactive story "The Final Hours of Portal 2" is now available for purchase on Steam.

Released in late April alongside the game, "Portal 2: The Final Hours" attempts to tell some of the story behind the development of Valve Software's most recent release: Portal 2. The app, turned interactive PC thing was developed by GT.TV host Geoff Keighley. Like the app, the PC version of the interactive story is priced at $1.99.

When we first reported on the product, comments indicated a desire to jump deeper into the story behind the game's development; however, some complained of the iPad exclusivity. Though the product isn't as timely in this release, it's now available to a wider audience.

We asked how willing people were to pay for the content when it launched on the iPad. With a PC release weeks later, we wonder again how the interactive experiment will fare in the marketplace. Is it too late to read about the development of a game most have already mastered? Let us know your thoughts in the comments.

More information on the app can be had on The Final Hours of Portal 2 official site.