Some of you may know that our indulges come loaded with a weird samsung app called com.sec.android.app.screencapture. I found that theres another samsung phone running FROYO that is able to take screenshots without being rooted. Apperrantly all you do on it is hold the back button and press the home button and the screenshot is taken. However it looks like it needs another little bit of samsung code to work. Check it out could be interesting if it can work on the indulge.
http://costela.net/2010/12/screenshots-on-unrooted-android/
http://costela.net/2010/12/screenshots-on-unrooted-android/