Nice idea... and now it works great!
but not as accurate as it should be. I tried using it a few times, and every time it gave a location about 2 blocks away from where I was. I like the concept, so I'll keep the app for now and hope it gets fixed in an update.
Update: I had to change my rating to five stars because the app is now working perfectly! I think the initial problem may have been more my fault because I recently updated my iPhone IOS to 4.3 and once it was done, the gps pin that FriendFlare started giving was dead on... So, I guess it wasn't the app that needed an update, just my phone.
Now it's so accurate that I was able to send a FriendFlare from a moving vehicle on the highway in a 3g area (I tried Edge as well, but that was probably asking too much).
So, I highly recommend this app because it does what it's advertised to do. End of story.