Just as I was saving a site into myFavorites yesterday, I got an IM from EarthLinker Gregg H. noting the very same article. The headline was "Remember The Milk Adds Locations". I was in the middle of adding the tag "[this is good]",which is a practice I've borrowed from Vox, when the message popped up from Gregg. It was a total online jinx moment. I think he owes me a coke.
I think we both liked it because it's a small but powerful way that location information has made something easy even easier and more useful, without being obtrusive or needlessly fancy. I'm notoriously wrong about predicting the course of history, even in the short term. But I can imagine that in a year's time anything that can be crossed with location will be, including both where you are and where the things you might want are. And by then, the best ideas will have bubbled up. We've always(well, since at least 2000) assumed that getting a coupon to pop up on your phone near your favorite coffee shop would be useful, but i imagine a year from now we'll start to see some really good examples of what's best served by the combination of knowing: (a)where the services/goods/people/reviews/content/things you want are and (b)where you are currently in relation to them or where you want to be. it probably even calls for some rethinking of familiar interfaces.
Online to-do lists site Remember The Milk is a good example, because the way they've added integration with Google Maps lets you organize your to-do list and your day based on where your tasks are in relation to each other. They've added space as a dimension to something that was previously just a linear, list-based tool. If you're office-bound, it's not all that helpful but if as part of your job, your errands, or your daily routine you traipse all over town, it can be a really useful tool.
Flickr's new geotagging system is also a decent example, although I haven't yet figured out the reasons I'll be using it other than how damn cool it is. I'd think on the citizen journalism side, finding "photos near" a location could be useful when you want to find alternate views of an event. Or if you were sightseeing and you wanted to know what's worth seeing wherever you're going, that could be a good use too. They did have lots of usage right away -- according to their blog within hours their system had over 1.6 million photos geotagged.
As an aside, lately I've found Lifehacker is on some kind of hot streak. They're ferreting out really useful sites, lists, ideas, and conversations, and I find myself bookmarking a high percentage of what they publish. If you don't have them in your Reader I highly recommend their feed.