Chris ) gurgled happily, sounding much like they
were saying :

Next week's strike is still on, however.

http://news.bbc.co.uk/1/hi/england/london/6977778.stm

No, it's NOT! - quote from that very web page....
"Union officials will meet again on Friday before deciding whether to
press ahead with a second 72-hour strike next Monday."

Given that this is the RMT, it's safe to say that until they say it's
definitely off, it's still on.