I've been waiting for about a year for Google Now to find its way to the iTunes store. Android users have had the pleasure of experiencing this next wave of predictive power and contextual relevancy.
This is simplicity at it's finest. Download Google Now and let it do the rest for you - allowing you to get the info you want, when you want it. Accurate and relevant info is pushed to you based on your preferences and location. It can track your route to work, notifiy of you places of interest around you, help find local restaurants, push sports scores to you in real-time and it also includes voice search as well.
Here's an example of one of the items pushed to me - one of my Amazon book orders showed up in my stream. Ultimate convenience and exactly the type of info I want to see on my phone.
You can also tell Google about the things that you are interested in hearing about. Add info about movies, restaurants, sports teams or your stocks and you'll get the info even faster based on your settings.
(If you're searching within the iTunes store on your phone, just look for Google Search - it's not listed as Google Now)
Are you using this app? If so, what do you like about it?