ok after reading 5 pages of threads, I'll stick to the topic which is skins and NOT corner/drop protection.
i dont have the IS but i purchased the BSE. i dont know why this and similar products dont get more press. it really is a nice product for $7. it covers my treo very well, it looks great, but hopefully, won't have any fading or peeling issues. even if it does, $7 to replace it is not breaking the bank.
applying this was a piece of cake. since i've applied similar material to my truck's hood, i had a little experience. the key to applying any film product is to anchor a small patch when the material is all lined up. by anchoring, it means taht you completely squeagy out the water from one corner and then squeegy out the rest of the water while still holding your finger/thumb on the piece that you anchored. this prevents the film from sliding out and out of alignment.
i just used a non-linty t-shirt and held the treo in my hand.
overall a +10 on the 10 scale
bob