MyLondonBus automatically takes your current location and searches for all buses around you.  It then shows you those buses and stops that you are able to catch, based on how fast you get around and let's you drag between different routes to see your buses fast.

MyLondonBus is perfectly usable in it's free download form, but really kicks into it's own on a full version upgrade.  Including timings accurate to the second, no ads, larger searches and the ability to save more settings.

Full Version Upgrade 

By simply dragging your finger across the colour selector bar, you can change the colour scheme of the app to suit your individual taste.

Set your Style

Either pull or shake to refresh the list of buses, or simply allow MyLondonBus to fire a reload using MyLondonBus' auto-update feature when it decides necessary