Twitter images are now being displayed under the People and Picture hubs of Windows Phone1
Indeed, there are probably many people still singing the joys of finally seeing Twitter natively integrated with Windows Phones, thanks to the arrival of Mango of course. Up until recently, images attached to tweets were revealed as nothing more than links. However, it seems that Microsoft has done some work on their end to render those images within the hubs – giving users a preview of what to expect.
via WP Central