1. Add MMS and group messages support on the newest Import SMS from Windows Phone PRO version; The PRO version also validates automatically invalid .msg files. The PRO version can be found in Store and is a paid app.
P.S: I'll still help with the validation of .msg files if you're contacting me via email, if you can't/won't buy the PRO version.
2. Improved performance of the application; The retrieval is faster according to your phone's processor (CPU)