There's a really nice Sequence Mode on my Nokia N95 that I've been looking for a reason to use all summer. You can set your camera to take a picture at intervals ranging from every 10 seconds through to every 15 minutes.
I fixed my phone to a lighting rig at Glasgow Green for Proms in the Park just before the gates opened and set it to snap every 5 minutes. Annoyingly it somehow managed to miss the fireworks which must have gone on for 4 minutes 59 seconds.
I dropped all the photos into iPhoto and decided upon Craig Armstrong's 'Glasgow Love Theme' as an appropriate piece of classical music to accompany them.