BA Flights has been useful, as i sometimes travel back to the UK using BA, i can easily find my flights and check if they are late.Hopefully they will revise this to allow easy online checkin at some point.

I love a good weather app but there are not many to write home about at the moment. Weatherbug seems to only work in F and not C, hopefully they will update that too.

LastFM is also a clever little tool, works best and cheapest with wifi of course. You need to sign up but it is free and works out what kind of music you like and streams that to you.