For those looking for some more useful apps, in particular a Stock Ticker app (liek the iPhone application)

Fidelity Stock app - http://iphone.fidelitylabs.com/index.php (need to change user agent to iphone useragent)
StockWatch - http://iphone.toughturtle.com/stockwatch/

A nice to have - Movies near you - and theater finder and movie times
http://iphone.movies.aol.com/

For those in New York here a nice NYC Transit app (doubt it will be useful when you are actually underground and there is no wifi or cellular connection there).
http://www.itransit.net/#_Itransit

Similar app for those in California
http://icaltrain.com/iphone.php

And maybe this was mentioned somewhere (since I used that tip for myself, though we already have OmWeather
iPhone weather - http://albinoblacksheep.com/iphone/weather/