For the year that I had an Android device, I fairly regularly updated my location on Google Latitude. It was great, since my location data (and how often I check into a place) helped Google recommend places to me, and is usually good about it. An on the Android platform, Google Latitude is very good. It ties in with Google+ (allowing you to make a post rather than just a check-in), Places, and Maps. If your location didn’t exist, you can make one. And there was a little feature that kept track of how many times you went to a place, meaning you could become a “regular” at a place via Latitude.
That’s great an all, and while Android garners more than 50% of the smartphone market, iPhones are not devices to be ignored if Google really wants your location data, as that’s another 25% of the market. Since I switched to the iPhone, I’ve noticed how much Google has neglected the platform. The iPhone version is more true to the old “location on map only” model that was once Latitude. You can only share you location with Latitude friends (which I have very few of), you can’t create new locations, and there’s no real incentive to bother using it. I am highly disappointed, Google. I’m going to stop using Latitude because of how terrible your iPhone app is. Good job.