I'm hoping to get to see the fountain this year as all the reports I have read have been that it has been a very positive addition to the park.
There's also this clip on Youtube shot at night which looks fantastic
http://www.youtube.com/watch?v=OXF-9E5DbbY
It's a shame that for most of the summer months the park has got into the habit of closing well within daylight hours which seems a bit of a waste to me but I suppose it will still be pretty impressive during the day.
Regards