Real-time arrival information for London Buses

... should be arriving some time in 2011 - provided, of course, that there are no unforeseen traffic problems :-)

By the way, the link in that post has become obsolete. Try this one instead.

Meanwhile, some enterprising private individual has connected live running information from various feeds with Google's Map API to create Live Bus - but for the stops I am principally interested in, it has no information feeds as yet.