Location-based services are just getting started and already early adopters are suffering from "check-in fatigue."
Because in order to tell all their friends where they are, they have to check-in through several services at once (because, for now, the services are walled-gardens). And because, for now, the location-based game is still a two-horse race (won't be for long), this is a royal pain in the neck.
This is smart. And it has a couple of important implications for the location-based war:
First, if it takes a while for a clear winner to emerge in the location-based game, a universal check-in service like this may come to be the real winner.
Second, this may be the way Facebook, Twitter, and other wannabes in the location game can actually break into it--by aggregating multiple services into a single interface.
Third, if a universal check-in service like this gains steam, Foursquare and Gowalla will be reduced to dump pipes, a la Twitter (whose open-ness has been great for adoption but has also surrendered valuable real-estate to TweetDeck, et al).
Now, all that said, we think a clear winner in location-based services is already emerging: Foursquare. We do not think that Facebook, Twitter, et al, will slow its growth, because we think the value of having a dedicated location-based app is immediately apparent to anyone who uses it.
I predicted this three months ago - finally a "meta check-in" service so you don't have to pull out five apps when you get to a bar....