Microsoft was kind enough to give out details of the 7740 update for Windows Phone back in November: it fixes “an issue with new voice mail notifications not appearing for customers on some European and Asian networks under certain conditions. It also fixes an email issue associated with Exchange Server 2003”.
A couple of devices, including the LG Optimus 7, already received the new platform refresh but according to recent reports, the international version of the HTC Titan is also getting it. Users in Denmark and in the U.K. have confirmed the existence of the refresh on their Titan devices but if you received the update yourself, drop us a line in the comments.
Update: Switzerland too! (Thanks: Nicolas Piccolo-Johnson)