Welp, so long Sony Ericsson. The mobile partnership that probably should've never been is coming to a formal close. Months after Sony announced that SE would be dissolved in favor of a Sony-led mobile effort, the company finally has the particulars in place. The main change is the final name. Instead of just " Sony ," the new company will be called Sony Mobile Communications -- perhaps SMC for short. Such a name change is taking place after Sony sucked up Ericsson's 50% stake in the old business, with that completed on Feb. 15th. This marks the completion of the transaction jointly announced by Sony and Ericsson on October 27, 2011, and makes Sony Ericsson a wholly-owned subsidiary of Sony.Here's a final, official quote on the matter from Sony: "Sony will rename Sony Ericsson "Sony Mobile Communications", and further integrate the mobile phone business as a vital element of its electronics business, with the aim of accelerating convergence between Sony's lineup of network enabled consumer electronics products, including smart phones, tablets, TVs and PCs."Better phone integration with other Sony products? Now that's differentiation that'll get some attention.