Wifi Booster allows you to pick very low Wifi signals to connect by reducing the minimum threshold set by iPhone, iPad or iPod. Normally Wifi Signals which are below the default minimum threshold do not appear in the Wifi Settings however after this Jailbreak tweak is applied you will be able to see additional networks with very low signal strength.
Moreover you can also check the MAC address of the router and the other clients which are connected onto Wifi Network. MAC addresses are shown below the SSID of each client or Router. No new icon is added for Wifi Booster 1.1 rather native Wifi Settings are enhanced with additional information.
Wifi Booster 1.1 is paid application for 1.99 US$ however you can try it using the procedure here from xSellize repo but please purchase it if you like it.
In order to enjoy such tweaks you need to Jailbreak so you might like to see Redsn0w Jailbreak & JailbreakMe or to Jailbreak while preserving your baseband (software unlock) see TinyUmbrella, SnowBreeze & PwnageTool.
For more stuff check out our Jailbreak Apps & Tweaks Gallery for iPhone/iPod, Themes Gallery for iPhone/iPod,Games Gallary for iPhone/iPod & Appstore Apps Gallery for iPhone/iPod.