If you need anything, anything at all, like ssh access to an S4 such as my own, to use as a guinea pig rig, I am of course very eager to hook you up. Coffee? Adderall? A foot rub? Anything you need, mate! I have several fine quality first born children who are negotiable, as well!
Cute 
I don't have an S4, and I'm not even sure what architecture they are to create a binary for them, so it'd be doing it blind. I'll see if I can figure something out if I find the time.
No I'm not against paid work at all. I lost that inhibition when hardware companies were trying to make millions of dollars in profit while depending on my free software and rarely they'd toss me a peanut.