I started getting this after adding links which started the 'google play' app to link users to my other game apps, e.g.
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=my game"));
when I quit my app, and tried to relaunch it from eclipse, i'd either get the 'too many open files' or i'd get the 'bringing current activity to front' message, which would just reopen the googleplay page I had launched from within my previous application run. it seems that secondary 'google play' intent is hanging on after I quit everything and is preventing the application relaunch from eclipse. unfortunately, just adding browserIntent.finish() from within the app doesn't work, the command (and the suggested (Activity) label fix) isn't accepted.
I didn't have this problem when I linked to my other apps through the web browser, just opening a web page to my app. I may have to switch back to that method.
this link shows a suggestion on quitting an intent started by your main activity, although i'm working on something simpler: How to stop an activity in android using intent?.