Wirelessly posted

Sounds like that program corrupted a system file.

You could try connecting your BlackBerry to your computer and use the DM to hopefully get a connection and then try removing the application.
Short of that you may have to wipe the device with jl_cmder to reinstall the OS.

Hopefully a genius out there will give you better odds and help you out. But if you've pulled the battery a few times and still get stuck, there might not be much left to do.