I have been ordering from these guys for a while, love the products.
1. No residue is left on the phone from the spectra wraps. The original ones did leave a residue however they updated the product recently, and also they do not leave scratches.
2. typically delivery for me has been no more than 4 working days, which is pretty damn good as it is coming from the US (i am in England).
I have my wraps already in my possession ready for when i get the 4S!
Awesome! Mine shipped yesterday and I'm not buying the Apple bumper until I get the wrap!!!
Just need to figure out whether to put on transparent or metal