What is the difference between the LG Rumor and the LG Rumor 2?

The lg rumor 2 is more new and there is a difference the lg rumor 2 is thiner then the lg rumor and the lg rumor 2 has a smiley face button so if you are texting and you want a face you click on the smiley face and alot of faces come up so you can choose one and the keyboard is better.