Bryan Trussel, co-founder and CEO of Gylmpse, said that while other location share apps "require users to create another social network, which is unappealing to most people because the reality is there are very few people in our lives who we want to know where we are, all of the time." The man has a point; supply your own hellish scenario here.
 

So with Glympse, users define a limited time period of up to four hours during which their location will be shared, making Glympse appropriate not only for family and friends but also coworkers, existing social networks and even mere acquaintances."

And yes, Twitter junkies, you can post your location to your account. Relax. All that is needed to receive a Glympse is a Web-enabled phone or computer. 

"The possibilities are endless," company officials said, suggesting that now when you let others know you're stuck in traffic and running late you can actually prove you're not lying. You can also "allow your teenager to check in on Friday night without feeling as if they are being followed," giving them another reason to "forget" their phone when they go out.

 

Glympse can be downloaded for free on the iPhone (News - Alert) and iPod touch from Apple's App Store. Caveat: On devices without GPS, like the iPod touch and non 3G iPhones, the Glympse experience "can be less than optima," company officials say, "since it uses WiFi (News - Alert) triangulation to identify location, which is typically less accurate than GPS and not always available."

This reporter can vouch for that: We tried it on our iPod Touch here in New Zealand and it couldn't even locate us. No doubt it'll work better on a GPS -enabled device.