Moodspin, a very eccentric social-networking add-on service has just had its app (link opens in iTunes) approved on the App Store. In case you're unfamiliar with the site, it currently works only on Twitter, and lets you very quickly broadcast how you're feeling to the people who follow you.
But here's the catch: it's not just text, the service goes in and makes small changes to your profile icon, adding that same mood-related emoticon to your photo, which in turn lets others see what you're feeling no matter what you just tweeted.
Is this useful? In the grand scheme of things, not at all. What's interesting though, is how it tracks that data back on Moodspin.com. Each time you update your mood status it's charted on a timeline, which if you're actively using the site, will show others what you were up to at various parts of the day. Each mood selection is also represented on your daily mood graph which you can compare to just your friends, or everyone else on the Moodspin service.
As an iPhone app Moodspin's initial offering is relatively simple, letting you select your mood in three taps, which can be fired off as a personalized update to Twitter. If there's enough room, it also (annoyingly) tacks on a URL to your Moodspin profile so that others can see what you've
been brooding about posted as moods during the past 24 hours. There is however, no way to track your past moods from the app itself, something I'm told is coming in the next big update.
In the meantime, a version of the service which is due later this month will be implementing Facebook status messages and mood changes to user's Facebook profile photos which tend to be quite a bit bigger than Twitter's. However, there it will compete with a myriad of other mood apps that have existed since the launch of the Facebook apps platform.