Thank you!Ipoker - poker network.
Oh, now I see better! Thanks!Yeah it's a network of poker sites.
It's also used as a shorthand for "internet poker" in general though. When you hear people talking about an "iPoker bill", particularly in the United States with regard to legislating / legalising online poker, that's more likely the context it's being used in (as opposed to referring specifically to the iPoker site).