When do you give them baby cereal?

When did you all start giving your bebe's cereal as their first food? Was cereal even their first food? I'd sure love some advice on when to start little Naki on his non-boob milk food diet :)

He's 4 months old (on the 29th) and I've let him suck and eat the insides of one grape, and he seemed fine. It seems like he's tolerating (bland!) foods when I stick it to his lips as it seems like he's starting to reach for my food...

Whaddy'a think?