I have trawled through the play store and found a few that can repeat a notification sound,which helps, but none that pulse the softkey lights.
There was one that perported to do it (lightflow), but it didnt work, and i found an old kernel on xda that also claimed to do it but was for gingerbread only I think (im on slimrom jellybean).
I absolutely love the note, its an amazing phone, but the lack of a notification light is quite annoying, meaning texts sometimes go unnoticed for hours.
Its quite perplexing why Samsung left this function out as I imagine it would be trivial to add at the kernel level.
Edited by maniac_mouse, 17 November 2012 - 07:55 PM.