As you didn't provide any specific web page content, I'm unable to summarize it. Please provide the content you need to be summarized.
mg: We’re excited about iPhone OS 4 and the addition of background location. Read why: http://bit.ly/d0u6pX /via @simplegeoinc
http://blog.simplegeo.com/post/506493498/iphone-os-4-background-location-and-simplegeo