What will nokia black bring/improve to the 520?

[pedrodg28]

Well, i installed the developer preview, and as most of you know, now there's the X, for closing apps, custom ringtones for text, email and voice mail message, rotation lock, driving mode, better bluetooth settings, but, all of that is microsoft, not nokia, the black update features that i know are: improvement to glance, taking raw photo, bluetooth 4.0 LE(which we already have on the 520 the amber update) none of which, aside the bluetooth, are available in the l520, cool nokia apps like nokia camera can be manually installed, so i would like to know, for the l520, what does the lumia black update adds?

 

[Ashish Kakade05]

on one knows bro........i think they should optimize glance and should bring for l520.......