You know it as the Android-powered Sony Ericsson Xperia X10, but on Japan’s DoCoMo network, it’s going as the “Smartphone Xperia,” and it’ll be available in April. The X10 — erm, Smartphone Xperia — will be available in white or black and will feature the same Timescape UI that we saw in our own hands-on. Still no word when we might actually see the Smartphone Xperia — erm, Xperia X10 — in this part of the world. [NTT DoCoMo]