I should probably add that I've used a BSE skin on my iPod for a year now and I'm amazed at how well it has stayed on, though I did get a bubble right on the screen after about a month - grrr. It was the first such skin that I've ever tried to apply and I didn't do a great job. If you know someone that is meticulous and likes to do crafts type of work it might be worth buying them a dinner to have it done right...
I also ordered one for my Pearl, but before I found time to put it on, I had already dropped it and scratched it. If anyone needs a testimonial for the toughness of a Pearl I can attest to about 3 drops from upper torso height onto concrete and all it picked up was some very small nicks and scratches - the screen never even blinked.
However, I hope to get one on my Curve right away while it is still pristine - I will definitely welcome the fingerprint resistance...