If you’re not using Google Voice yet, I recommend looking into it. It can be seamlessly integrated with any Android phone, and while not as easy, it can be useful on an iPhone too. Having an iPhone 4 myself, I use Google Voice for 95% of my calls and texts. This post is about the improvements that I would love for Google to make, which I think would dramatically improve the user experience.
1. The option for conversation view all the way back in time with a given person. Currently, I can only see brief conversations with each person. The iPhone enables me to see our back and forth communication on one page all the way back, hundreds of texts into the past, a very cool feature.