Google has added some new features to Latitude. First, you can now see your location history. You have to opt-in and only you can see your history. I can't forsee any real valuable use cases, but it's interesting to see a timeline of your recent locations.
The second new feature is friend alerts. Google will send an email or text alert when your friends are nearby. They don't define how close "nearby" is, so we'll have to see what the sensitivity is. An interesting feature is combining alerts with history to determine if it's worth sending an alert. I share location with Sam Ro, a co-worker at Clearwire in Herndon, so it would not make much sense to alert me every time we're at the office together. Yet, supposedly Latitude will be smart enough to tell me if we're at the same field watching our boys play lacrosse, where we stumbled into each other the old fashioned way last Spring.
Here is a link to the Latitude site where you can configure your settings for history and alerts. To use alerts, you must also have history enabled.
http://www.google.com/latitude/apps/alerts
It was tricky even finding the site to change this setting. I found it via the article below from Mashable.
http://mashable.com/2009/11/10/google-latitude-features/
The experience would be more seamless if Google could add Latitude to the regular Google Maps web interface. Today, the official PC experience according to Google is a widget in iGoogle. And the history feature is only accessible from yet another web page.
https://www.google.com/latitude/apps/history/view
So far, the experience seems optimized for phones, especially Android, which makes sense given the intrinsic value as a mobile product.
Tying this back to Clear, we hope that customers on our network will get a valuable location experience on any device. Seeing the people and places you care about around you will become an everyday experience, and using our integrated cell based location lookup will be a consistent way to capture that location.