Did Microsoft PUBLICLY say that they would release the WP 8.1 on the Dev app to everyone at \\build ? Just because they are having the even does NOT mean they are going to release it everyone at that time.
The count down is great but, is MS didn't say anything, you could be counting down to a day that you will be just disappointed. If they are going to do the preview for everyone, I am sure they will announce it but, for a later date...
Does anyone have any FACT(proof plz) that they will be releasing it at the conference to everyone?