We're sure hope Sony's announcing some new phones a Mobile World Congress 2012 considering all of the leaks we've seen. Xperia Blog has posted a photo of what it thinks is the ST25i "Kumquat." We wouldn't blame you if you thought this was just another photo of the Xperia S or the rumored LT22i Nypon, but it does look to be a different model due to the placement of its front-facing camera. A tipster told the blog that the Sony Ericsson-branded phone should have a 3.5-inch display, 1GHz dual-core processor, and a 5-megapixel camera. We'll be sure to let you know what Sony does reveal at MWC in February.