Forget that "MX Quad-core" moniker, because Meizu's just formally introduced its first quad-core Android phone as the "MX 4-core" in Hong Kong. For those who care, this is the first time ever for Meizu to collaborate with a carrier -- that being Hong Kong's PCCW, who's offering the HK$3,099 (US$400) 32GB model for free on various tariffs, while details are light on the HK$4,099 (US$530) 64GB version. Once the stage cleared we had a chance to take a closer look at the international variant of the MX 4-core. Aside from the disappearance of the Chinese logo above the screen plus the duller logo on the back (but accompanied by an extra capacity label), the 4-inch HSPA+ phone looks identical to its dual-core sibling. Additionally, Hong Kong and mainland China customers who pre-order between now and the launch on June 30th will get to pick a colored back crystal shell for free, including ivory white, milky lime, lilac purple and misty pink to replace the original white.