Faking glow

I’ve been thinking about what my game needs, and it seems to me the only thing really left to do is add a glow effect. But the iPhone doesn’t support it. Does anyone have any thoughts on clever use of textures or planes or something to create glow? And what about a distortion effect for explosion particles?

It depends on the context you need the glow to happen. Usually you can simply add glow to the texture itself (instead of applying the glow post-rendering)

That sounds cool. How do I do that?