It seems that 28nm production for Kabini and Temash will be at TSMC. Global Foundries couldn't ramp up production/fix their process problems fast enough.
Kabini was stated to launch on TSMC 28nm process and that was going as planned. This was due to a waiver on the WSA where GLF allowed AMD to manufacture Brazos/Kabini on TSMC. This waiver was killed in December, when the WSA received its last amendment.
I think we can agree that regardless of whatever problems GLF is having with their 28nm process, there wouldn't be enough time to transpose Kabini to GLF and launch the chip in Q1 even if GLF had a working process by now.