Do you have broken power button? This app can save your phone! You can unlock screen by other keys and lock screen using widget.

Download from Market:
https://market.android.com/details?id=cz.destil.fixbrokenpb

Discussion:
https://groups.google.com/forum/?hl=en#!forum/fix-broken-power-button

Want application in your language? Contribute to translations:
http://www.getlocalization.com/Broken/ 

Did I saved your phone? Please Donate!
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=PSHU456C862DQ

This app is based on AnyUnlock, more here:
https://github.com/helloworld1/AnyUnlock