The concept map summarizing our brainstorming is here.

Games
anagrams
tic tac toe
puzzle
questions (trivia)
hangman
User Request Information
emergency services
phone book
wikipedia
headlines
traffic jam
holiday info
city weather
dictionary
Entertainment
dating
cinema
events
concerts
party
exhibitions
theater
Personalized items
scheduler
SMS
bidding
reservations
Lottery
Shopping
online shopping
handy ticket
train tickets
Collecting information
survey
lost people
Tourism
train schedule
flight schedule
restaurant tips
maps
navigator
historic places
culture
Screen Saver
news
health tips
weather
discount information
city window
advertisement
animations
movie trailers