frediz
There is an easier way to start shell executable, thank igorks, you don't have to kill anything.
Check this file out:
http://code.google.com/p/prs-plus/so.../core_shell.js
Unfortunatelly it's currently in the middle of _very_heavy_ refactoring and there is no corresponding installer.
To use it, you only need prspVM.xml and corresponding so file (it's referenced inside xml file, both are availbel in "firmware" repository) and amend paths.
It might be already included in Utils class in the current release, I don't remember.
PS
By the way, this might be interesting for you:
https://www.mobileread.com/forums/showthread.php?t=68103