Topic: What is the splat/unary/asterisk operator useful for?[Post in RafLabs]

Some days ago I made a post about the splat operator in Ruby, the post was mentioned in the episode 101 of Ruby5 and in the episode 18 of The Ruby Show, I thought it'd be a good idea to post it here. Hope you guys find it useful:

What is the splat/unary/asterisk operator useful for?

Thanks.