The upcoming Windows Phone update is looking better with each subsequent leak. What initially appeared to be primarily targeted toward programmers has since begun bearing fruit on the user's end, a trend continued with this latest unauthorized glimpse. We're certainly taking it with a few tablespoons of salt -- the Mango screens appeared on and were subsequently pulled from Chinese site Cnblogs -- but we like what we see. Perhaps most significant among the newly glimpsed features here is integration between WP7's People hub and Windows Live Messenger, making it possible to IM people directly from the contacts list. Also present, Bing Image Search, support for East Asian languages, and added SkyDrive functionality, which we've already seen previewed. No doubt we'll be hearing more on this very subject in the near future. More info as the story ripens.