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Earlier this week, we reported that the previously-revealed Word Flow keyboard for the iPhone was in private beta testing by Microsoft. Now the company has posted a sign-up page for iPhone owners to register their interest in trying out Word Flow.
The sign-up page also shows a video that demos some of the Word Flow keyboard's features, such as its one-handed mode and its ability to customize its background with different themes. There's no word yet on when Word Flow will get its public release on the App Store.
