I purchased a half-dozen from newegg.com four weeks ago.  They have arrived and I have them in my hands.  So they are available, even if Asus appears to be producing them in fits and starts.

Chris
 
Date: Mon, 16 Jul 2012 10:15:02 -0500
From: "Jack O'Quin" <jack.oquin@gmail.com>
To: User discussions <ros-users@code.ros.org>
Subject: Re: [ros-users] Asus Xtion Pro Live looks like it's
        discontinued
Message-ID:
        <CAB6SgyXBJwicr8wE-kY6ykwwCxhHehqHCEsAqohE8rzjOPf6BA@mail.gmail.com>
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On Mon, Jul 16, 2012 at 9:47 AM, Tim van Elteren
<timvanelteren@gmail.com> wrote:
> Hi Jack,
>
> if you don't mind, would you like to share where you purchased your
> Asus Xtion Pro Live?

http://www.newegg.com/Product/Product.aspx?Item=N82E16826785030

--
 joq