Talking of the messaging app, Microsoft is trying to enhance its functionality with the inclusion of SMS support. The reason being that for now, the Messaging App works no differently from Windows Live Messenger. It is quite possible that XBOX Live may become synonymous with Windows 8 entertainment.
Metro Apps in Windows® 8 Consumer Preview
In all probability, the Windows 8 Consumer Preview will be released on the 29th of February. For now, Microsoft is deciding which Metro apps should be included in its latest built.Those who are awaiting the release of the Consumer Preview can expect the inclusion of common apps like Camera, Calendar, Video, Music, Photos, Messaging etc. These apps are known to everyone but there is a possibility that when the Consumer Preview is finally out, there could be more on offer. One may also have the option of updating the apps from the Windows Store. The latter may consist of a few more apps that we are unaware of at the moment.