IT ?? you mean N900 or them (the tools)
Well it is the same but every tool has it's own job
ex :
ettercap +sslstrip (you can sniff the pass of every one logging in to any account like msn facebook ...etc) using mitm attakes

mdk3 lol a lot of bloody fun with it (simply controle the whole area you are in)

metasploit (soon will post a guide) you can hack any pc connected to your lan

aircrack (hacking wireless) also cowpatty

and for the rest just google them