My 7/26 experience...
I woke up at around 6:30 AM that morning, did the whole shower/shave thing, got dressed and went to the local Wal-Mart number one first. Apparently they did the unthinkable (for this WM, at least) and actually put stuff out at midnight the night before, so a lot of stuff was relatively picked over. No sign of the Falcon, AT-TE, or the 20 dollar vehicles, and most of the Legacy CW wave was gone, but still a decent selection. This WM was the only retailer of the day who actually had Battle Packs on the shelf, even though the only one left by the time I got there was the Hoth Recon Patrol set.
Second stop was Target at opening and, just like every other day at Target and despite the huge blank spot for the stuff, they had done nothing. Target here is just about the worst retailer I've ever dealt with, and they did nothing to break that string this time around. Another collector and I asked a manager about what was going on and it was one of the employees from the food department who was finally sent back to the back to see if they had anything. All he brought out was a bunch of the role play stuff (helmets, sabers, laptops), and two cases of animated figures, along with one case of Wave 1 Legacy. No vehicles of any kind, no Battle Packs, no Evolutions, no Fox, nothing else. A total wash-out, but as I said, given my experience with this Target store, it was no surprise to see them not stocking.
Third stop was TRU, who wound up getting the majority of my money. Our store didn't do a midnight sale the night before (I don't think we get much traffic there), so we got to see the full display upon opening. They were pretty much fully stocked, with the exception of Battle Packs and the second group of Evolutions sets, and there was some confusion over the non-appearance of the Holo Grievous figure (it was being held for the Sunday circular, it turns out, but the manager told us all to bring our receipts in the next day and we'd get them no questions asked). Overall, TRU had the best set-up, both in terms of stock and in terms of easiness. Two thumbs up for them.
Fourth stop was local Wal-Mart number two, who put out two cases of animated figures and a ****load of lightsabers on an endcap, and did absolutely nothing else. As of Friday, they still hadn't done anything else, so I don't know what's going on there.
Target eventually stocked two endcaps on Wednesday morning this week (way to go with that five day lag Target!), and very little is moving. I wonder why.
So anyway, Toys R Us was the real winner overall in this whole launch date fiasco, which proves yet again why launch dates for toys are ridiculous and don't work: either stores put stuff out early, or they don't put it out on the actual launch date at all.