Is that on the side that connects the IPAC to the computer or the keyboard to the IPAC? If it connects the keyboard to the IPAC, don't panic, just use a USB keyboard (like others have suggested above) to do your keyboard maintenance (hooked up to the mobo). Then as time permits, get the inport fixed.
If it is the side that connects the IPAC to the computer via the PS2 port, then PANIC. OK, don't panic, just carefully reposition the piece, touch the 3 loose connections with a hot soldering iron and you should be back in business