On my iPad:
For the grandchildren:
More Toast is great fun.
Talking Tom
Pocket pond
For me:
Angry Birds [Embarrassed]
Met Office
Tune in Radio (so when docking, you have a radio)
BBC News
A crossword app that downloads The Independent ones ever day + others of your choice
Scrabble
Ultralingua -translation machine
Kindle (YES!)
TV guide
Chamber Dictionary and thesaurus
Complete works of Shakespeare
Oh dear, that's a lot. Don't have music on iPad, but do on iPod, with audio books etc.
Lack of public toilets in towns.