The events of the series happen (from the reader/viewer's perspective) after Kyon has given up on the idea of sliders, ect.
The SOS Brigade might be the work of Kyon, who is the TRUE possessor of the god-like powers.
The entire series was simply his sub-conscious trying to prevent him from becoming depressed. (So deeply subconscious that the creator of the series didn't even know originally)
Also, I want to believe that Kyon's real name will have some importance.
However, I won't be surprised if I find out that I was completely wrong.