Another week, another leak of Windows Mobile 7.5 ('Mango') features. Once again, the chaps at Windows Phone Dev Podcast have managed to get their hands on some screen shots of reportedly new features coming this fall to Windows Phone. And once again, if true, you won't be disappointed.

  • Windows Live Messenger, Facebook chat and AOL Instant Messenger all integrated under Messaging--and remember, we heard this is rumored to be a dual data/SMS system, making it really reliable even when your connection is not. Your presence as well as your friends are displayed in the People Hub dynamically.
  • Office 365 and Skydrive built into Office hub--'nuff said
  • Group Messaging: currently there are some nice 3rd party apps that do this, but the ability to have pre-defined groups to message to will be now native, allowing to create quick groups for Family, Work, Friends, etc. This will work for Email and SMS.
  • Artist art on Lockscreen: This is very cool, especially those with Zune HD players. What this does is pull down the Zune/Artist artwork of your current selection and plays it in a marquee/banner fashion on the screen. It currently does this on your Zune desktop/Xbox (play some music and wiat a few mins, you'll see). Evidently, in WP7.5, you can do this on your phone, making the Zune HD/Windows Phone distinction even less. This was always an awesome thing on the Zune HD, so we're glad it's being brought over.
  • Games Hub gets a facelift, including 'sync' option (potentially for online-game play). We first reported this back at MIX11, so now it's confirmed.
  • Native Checkins are coming e.g. Facebook Places. More info here.
  • Visual Voicemail will use Open Mobile Terminal Platform (OMTP)
  • Battery saving features/options (under Settings)
  • WiFi Hotspot support, uses Network Communication and Information Systems (NCIS) technology

Not bad, not bad at all. The messaging features should be very popular as well as the other additions coming to Mango--an update that is rapidly turning into a major overhaul of the entire Windows Phone system. We expect to see more, of course, come May 24th in New York City, so make sure you join us for all the live coverage!

Source: Windows Phone Dev Podcast; Thanks, Brianna, for the heads up