A few days ago we saw some new images of a Sony Ericsson Windows Phone prototype. At the time, it looked to be a device code-named "Julie", a 4" QWERTY slider that was believed to have been canceled in 2010 after SE pulled out from Windows Phone development.
NokiaWP commented that this newly imaged prototype was running Mango though we could not verify that at the time. If it were Mango or later, it could very well signify a new attempt at Sony to embrace Windows Phone. Looking at these new images, we are confident in saying that this is the old prototype and it is not Mango. Evidence comes from the Windows Phone boot screen, which is clearly the pre-Mango era logo as well as the old Xbox LIVE and Internet Explore tiles on the Start screen.
In other words, while this would certainly be a killer device to add to our collection, we do not believe that these images reveal any new strategy by Sony to re-enter the Windows Phone market. Perhaps they still do have plans either now or in the future, but this device is clearly a 2010-era relic.
Interesting though for what might have been, eh?
Source: NokiaWP; Thanks, Juddy, for the tip