For the SL1, the firmware has been dumped so far (same time as the T5i) and i think it's just waiting for someone to develop it. Unlike the T5i, I haven't seen a hello world post yet. at least not in this thread... coutts seems to be jumping on it, so it's wait and see.
Many websites jumped on the "it's out" mentality when the firmwares were dumped and shots were posted for the T5i.
I could be wrong though....