I have had the Samsung A900 although it is a really good phone, I recently upgraded to the M610 and I could not be happier. The M610 menu is much faster than the A900. Battery life is better. The screen is amazing. Reception and call quality is fantastic.
I currently have an LG PM225 and im ready for an upgrade, I was looking at the Samsung's A900 and M610 but am open to any suggestions, price range from free to around 150 and I am on the sprint network, thank you for your time.