This will be a short post since im typing it on my tablet. When reading for the ceh exam much of the objectives are based on getting as much information as possible. While a tablet can’t replace an laptop with backtrack it has some tools that you can use.
You can use wifi analyzer to probe for wireless network, see what channel they are on and which encryption they are using.
If you are so lucky as to find an open network you can use the tool fing do to a scan on network to find alive hosts, it can also do an port scan, not so advanced as nmap but it is useable to scan if someone has an web server on their router
Now that you have gained access to an open network bring your favorite laptop with backtrack and use the dsniff package ( more on that later) 🙂