I just had my nsf wheel bearing replaced by a local independent LR specialist. Now I find that the cruise control no longer works quite as perfectly as it did before. Though it engages, the speed does not stay at its set point but drops 5-10 mph before holding steady. the + button no longer increases the speed (very much).

Am I right in thinking that the speed sensor is also the ABS sensor in the wheel bearing??

I'm taking it back to them tomorrow.... 138,000 miles & counting

I am absolutely no techie but can say that I had an ABS sensor go on my old BMW and the first I knew of it was the cruise control stopped working so I reckon you are probably right. Seems too much of a coincidence to be unrelated to the work you have had done doesn't it!