If Wilma's pressure drops any more, it will take the record.
The 1935 Labor Day hurricane is "only" the US-strike record (and that pressure was measured at landfall, which is usually higher than the absolute minimum) . Mitch is the Atlantic record-holder at 888 mb, and Super Typhoon Tip is the world record-holder at 870 mb
I got Mitch on the brain; that was Gilbert with the 888. Sorry about the confusion, but I'm usually not awake this late.