@bulutsuzgece hocam, kaçırdığınız diğer cevapları da buraya atayım İngilizce, müsait olduğunuzda ilgilenirsiniz
Music is a good topic for this AMA.. lots of interest!
There's a balancing act we're trying to effectively walk here... (1) we have a super-valuable audience of subscribers who've been with us since Zune, and who value subscription, etc... and at the same time (2) we're selling the significant volume of phones to people who are NOT Xbox Music (Zune) subscribers and (based on needing to pay a monthly fee) aren't likely to become subscribers. They use music "simply".
SO ... we're trying to build an experience that runs cross device on your PC, your Xbox, your Phone-- in a service-oriented way (think: cloud collection)... but simultaneously work for the hordes of people who manually sync content using the shell or itunes. Getting both of these right has been challenging.
We moved away from the PC Zune client in the interest of serving the broadest phone-buying audience in the way they already knew. We learned that many people who ALREADY USED itunes or the shell viewed learning a new Zune client as a "speedbump" in the way of getting going on a new phone. So, we changed the structure to appeal better to those people.
The new experience in WP8.1 Dev Preview will get us to one system that works GREAT for "ordinary sideloaders" (it works with the Windows Shell) AND for people who use multiple devices and are more "cloud-oriented". it's re-architected to handle both of these well-- and in particular we're shipping it as an app on the phone and have committed to regular updates which will make a BIG difference over the next few months. You've seen one already and more are on the way.
Upcoming in the app: you'll see perf improvements (we hear you!), better stability, UI improvements (some of you have been asking for a "swipe" to change tracks), etc. etc. Do take a "months" time view of this, as there's plenty of stuff in the pipeline.
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Developer preview is NOT final.. there's client-side software fixes we're still making, when UPDATES go out to existing phones they will come with "BSP" (low-level phone firmware) updates from the OEMs... and the Services (cortana) are continuallyl getting improved. SO.. when you get an official update or buy a new phone, it'll be more polished than what you folks have now.
In terms of timing... no specific dates to mention, and keep in mind that the software updates will vary by phone and carrier. Do keep in mind our history last year with updates to get a sense of how we think about this.
In terms of the specific issues you hit -- the dev preview has gone very well from our POV, with hundreds of thousands of "devs" having downloaded it so far (smile), and we’ve been closely monitoring feedback on the platform, features like Cortana, action center, etc.
And since you mentioned this, it's a good opportunity to mention our uservoice site –windowsphone.uservoice.com. The team uses this site A TON to help structure and prioritize feedback on what customers want to see in the product. yes, I read it myself and I FREQUENTLY send links to people on the team when I need help winning an argument. One of my favorite stories from a previous release about how we use uservoice was how you can now configure the button in the browser addressbar to do what you want – e.g. favorites or tabs. Everyone who voted on that feature, THANK YOU for making your voice heard.