On the iOS device itself if you go to Settings > Brightness & Wallpaper and look at the preview screenshots in the Choose Wallpaper section--the old unlock screen is there.
Yeah I hate that too. I think it will look good once it's transparent (as I've seen in some screen shots), but for now I'm not a fan. But I noticed the same thing about that tiny strip of transparency even on beta 1. I hoped it would be fixed in beta 2 but no luck yet.
On the iOS device itself if you go to Settings > Brightness & Wallpaper and look at the preview screenshots in the Choose Wallpaper section--the old unlock screen is there.
I like the old style dock (and love it on my Mac) but I think it looks wrong on iOS7. Having said that a fully transparent dock on iOS7 would be so much better, if people kept reporting the dock as a bug maybe Apple will get the hint.