What you need to know:
• Check.in is an HTML5 app built by location veteran Brightkite to cute check-in fatigue.
• There are about a dozen location based networks you can check in to right now, and Check.in is looking to be the one check in to rule them all.
• Launches with Foursquare, Brightkite, and three networks in experimental mode: Gowalla, TriOut, and Whrrl
• Problem is still that there isn't one unified database of places, each service has its own. All Check.in does is coss check and do its best to match.
• Works on iPhone, Android, iPad, and any other HTML5 capable browser.
I've been using Check.in in closed beta for quite some time, and I use it quite rarely and only when I remember. Most often it's because of the simple fact that half the time it can't find me on one of the services it offers. Whether it's Brightkite or Gowalla, it just has trouble actually hitting all (then) three services it incorporates. Foursquare usually worked just fine, but at that point I might as well just use the apps. This isn't a problem with Check.in, it's an inherent problem with the services. There needs to be one central database of places, but it hasn't happened yet. What do you think? Have you tried it out? Let us know in the comments!