Only Sony launched a big tablet, and that because they're using S600. Waiting for T4 does allow OEMs to wait for KLP as well, so perhaps that's it.
Even if the OEM's are waiting for Tegra 4(for whatever reason, whether KLP or what have you), they will have been announced as a launch partner by now.
Nvidia's announced launch partners for Tegra 4 so far:
1.) Themselves: According to Nvidia, "Project Shield" will be the
first Tegra 4 device.
2.) Vizio: They supposedly will be making a 10" tablet. No idea when it will be released.
3.) ZTE: They supposedly will be making phones. No idea when it will be released.
That's it...No Asus, Sony, LG, Motorola, HTC, Samsung, or any of the 1st world Android manufacturers.
I'm not interested in
ever owning a ZTE or Huawei product. I'm also not interested in ever owning a 10" tablet over a 7-8" one, more so especially from a "so-so" manufacturer like Vizio that has yet to prove itself in the Android world.