Truth is that most popular models phones will be available at store on launch. I believe last year it was same situation. On Monday after Friday preorder start store pick up was showing as unavailable and shipping was further out. Same as Friday and launch weekend store pick up was unavailable. On Monday it started showing available for store pick up again for most models. It will be probably same this year. Most likely you will be able to walk in and buy phone on spot during lunch weekend. And starting Monday you should be be able to reserve for store pick up. Regarding iUP, I returned phone on iUP and was able to get another phone using iUP immediately. So if anything I assume that if your eligibility does not reset immediately it should happen within 24 hours. Good luck.