This is one of the few products that I've bought that does exactly what it says on the tin. They arrived the next day, despite me ordering it on the day before New Years Eve. There must have been a product update from earlier reviews, as the nib is now on an angle, and is the ideal slope for using on my screen. I use it mainly for my Zoostorm SL8, but it works just as well on my iPhone 3GS. Being sold in pairs is such a good idea, as if I break or lose one, then I already have a spare rather than having to re-order. Unlike other reviewers, I don't have to press hard for it to work, so maybe with the new nip shape they hve fixed that problem.
The only negative comments I have is that it could be of a slightly more robust material (feels very tinny), as I can see this bending if it were sat on, and that it could be slightly longer. Mind you, both of these improvements would mean that it would probably cost more. That being said, these are very personal comments, and everyone may not feel the same, and apart from these I am very pleased with them.