studio neat have released two add-ons for their very useful iphone accessory, the glif (previously posted about here). the glif is essentially a tripod mount and stand for an iphone 4 and 4s. i've had one for a few months now, and have found it to be just as useful as i'd hoped, especially when combined with a gorillapod. the only negatives were very minor ones, which these new add-ons seem to solve simply, and neatly.
one issue i had was if i wanted to use the glif when doing something like cycling. i felt that if i attached it to my bike, it might not be secure enough to stop the iphone falling out. the 'serif' (below) is designed to keep your iphone completely secure in situations a bit more extreme. even better, when you're not using it, it fits snuggly inside the glif.
the other issue was where to store it. i usually keep it in my bag, but as it is so minimal it often falls to the bottom of the bag and is not as handy as i'd like. the 'ligature' (below) is a simple keyring loop that attaches to the tripod thread on the bottom, so you can attach it to a keyring or your bag, making it much more handy.
as i mentioned, neither of these problems were major, but it's still nice that they've thought about them, and designed two very simple add-ons that improve the experience even more. and at only $12, you can't really go wrong!
available from studio neat.