Allwinner released the Allwinner A31 quad-core ARM Cortex-A7 processor with SGX544MP2 back in December, and tablets have been shipping with it since January. Now at Mobile World Congress 2013, Allwinner announces the Allwinner A31S for use in Phablets, to support the modem module from ZTE and be optimized for Phablet use, Phablets are described as 3G/LTE phone devices between 5″ and 7″ in screen size. Allwinner also talks about the Allwinner A20 dual-core ARM Cortex-A7 with Mali-400 that is pin-compatible with Allwinner A10 tablet designs, thus the A20 is expected to replace all Allwinner A10 tablet designs from March onwards.