BindoGPS V1.1 has been approved by Apple, and should be live in the App Store very soon. Here are some notes about the update:

• Min.Accuracy
  In the default setting BindoGPS V1.0 used any location the iPhone reported, though this can be very inaccurate. V1.1 now has a different default setting, it requires that the accuracy the iPhone reports must be 400m or better. This shouldn't be a problem, when you have a GPS reception.
  But if you are indoor and the iPhone can only use Cell/WiFi triangulation it might not find your location.
  You can change the default setting in the Settings.app of the iPhone.
• Push Notifications
  In order to use Push Notifications you and your friend must have installed BindoGPS V1.1 , must have started it at least once and must confirm the that BindoGPS can send Push notifications.
  Push notifications are send when
  
  • you tap on the name of your friend on the "Friends" tab.
  • you send a message
  • you send a friend request