Twinkler Software let me know that they are having a sale on their WiFi Hero BlackBerry app where you can get it at 30% off through December 11th. If you’re constantly on the move and are always using WiFi, this app will help by automatically enabling/disabling the WiFi connection based on your location.

• Location Based. In this mode, WiFi Hero will automatically learn the location of the WiFi Hotspot you are currently connected to, and when WiFi is not connected (you are out of range of this Hotspot), WiFi Hero will automatically turn off WiFi – and when you come back to the same Hotspot location, it will automatically turn on WiFi.
• Screen Status. In this mode, WiFi Hero will automatically turn on WiFi when the screen is on and automatically turn off WiFi when the screen is off – making this very useful when you use your Blackberry to browse the web.
• Charging Status. In this mode, WiFi Hero will automatically turn on WiFi when the device is on charge, and automatically turn off WiFi when device is not charging and on battery power.
• This application is very small (about 12K) and is optimized for battery life.

WiFi Hero is available for all BlackBerry devices that are WiFi-enabled and running OS 4.5 or higher. Until December 11th you can pick up WiFi Hero at 30% off for $3.49. A free trial is available if you’d like to take it for a test run before buying it.