Currently going to upgrade to either a Galaxy III or Galaxy Note. Would like to hold out for the Note II, just to hold one in my hands to make a determination, but I need something sooner than later to replace my Galaxy S first run. Samsung is bad about upgrading their OS, which is why I'm still on Froyo, and didn't get Froyo until late last year. But that's really a quibble, and I've gotten comfortable enough with the concept of rooting where I could upgrade to Jellybean or whatever comes next when I do finally replace my phone.
If I'm not mistaken (I didn't read through the whole thread), but both iPhone and Galaxy lines use Gorilla Glass. I'm not sure why one model would break more easily over the other, unless there are lines of Gorilla Glass and/or the manner in which they were implemented.
I like Go Launcher just fine. Faster then my default TwLauncher or ADW. I actually wouldn't recommend it for the themes, specifically, but for the implementation.