This is a simple little app for the Samsung Galaxy line of phones. It will not work for the Galaxy Tablet, as this is very hardware specific. E-mail me if it doesn't work for your Galaxy S phone, I'd like to make it work for everyone. REQUIRES root access. It keeps the LEDs for the capsense buttons on while the screen is on. In order to do this it requires root access.
According to the antivirus report, the app doesn't contain viruses or any kind of malware. Guardian Bob created Keep The Lights On that lies within the Tools category. The latest update was on Jan 5, 2011 and this application was downloaded and set up by over 10K users.
The average user rating of the app is 4.3. It's free to download the .apk setup package of Keep The Lights On and you can check out users' reviews on Droid Informer. This application installer requires 131 KB of free space to work fine on Android 2.1 and above.
As users mention, you can find such a drawback of the app as a battery drain.