I have been wondering what apps would you recommend which are UK-specific. Probably the most important in this category would be transport-related apps... but the discussion of any other would be equally welcome!

I have seen available in the store:
->Tube Map
->London Underground
->London Transport Pro
->London Transport Live
->Rail Planner Live
->Train Times UK

Any thoughts, opinions, recommendations on these and other UK-specific applications ?

Thank you!