What has your cell phone done for you lately? Mine just updated my blog. Then it told me my friend Craig was just a few blocks up 
the street. Then it showed me my Google Reader feeds. Then it told me what song was playing on the radio. Then it got me out of a really boring meeting.
No, no, I didn’t just get back from the future with an iPhone 2; this is all stuff accomplished with an average, ordinary handset. It’s just a matter of knowing which buttons to push, so to speak. With the right software and services, your phone can perform a startling array of fun and practical functions.
Alpha Geek: 10 cool cell phone tricks - Lifehacker