After installing Lion my keyboard will not work at all and it will not recognize my wi-fi connection at times. Any ideas for a solution to this problem?

It will not let me type anything now and the wi-fi connection is not recognized at times! Please help!! This only happened after I downloaded Lion.

Now that you have restored it to Apple software, we can help - no kidding.
If WiFi is grayed out (tap Settings first) then you will not be able to select WiFi. See this article: http://support.apple.com/kb/TS1559
If you can select WiFi, your touch will then detect WiFi networks that are within range. Networks that are protected by encryption will display with a closed lock. Open networks will have an open lock. Networks are displayed by strongest signal to weakest signal.
Closed/locked networks require a password or WEP key to join. Open networks often require that you agree to terms and conditions for that network. This usually occurs with a Safari-like screen that appears 15-30 seconds after you tap on the network. Until you go through that screen, it might look like you are connected but you are not.
Spend some time going through the basic WiFi troubleshooting guide: httpL//support.apple.com/kb/TS1398

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