yes, ZTE will be first brand using tegra 4. seems like nvidia not getting very good order from phone vendor. snapdragon strategic looks good and better, 600, 800. and now 400 and 200 for low entry phone.

sorry for o/t:
my last nvidia pc graphic card is 8600GT, no more support after that, feel that nvidia rebrand too much for mid-range to low end cards, compare amd radeaon although amd did as well but mostly on OEM only or few low end cards. Second, notebook graphics sux to max during 8300M era, denied quality issue n no recall. when they come to mobile smartphone business, tegra 2 also give me bad experience on flashing, nvflash command cannot enter sequentially in short n will get device not detect or ready after 1 command sent, have to enter 1 command n wait 2/3seconds before continue again. nvidia CEO also pondan, tegra 2 sales not doing good or met his forecast/goal, he blame Android eco-system weak/bad

rumor said, second gen Nexus 7 no more tegra, leaked said google gonna go with qualcomm

you should said smartphone, not phone in general