Immunity SILICA is a hand-held penetration testing product that leverages Immunity CANVAS to provide a unique testing tool for networks. Currently it supports 802.11 (Wi-Fi) and Bluetooth wireless connections or optionally Ethernet via USB. Its slim, PDA-like profile allows the penetration tester to perform testing while behaving innocuously.
a nice tool to have ^_^
sample screenshot:


more info:
http://www.immunityinc.com/products-silica.shtml



