I was looking on Amazon an there's like 3-4 different ones..the one that caught my eye was the ST600...idk how different it is from the others...I do want one for self portraits..since its a little hard to get a good pic doing a self portrait..haha..I just like it a lot since I had an old Motorola phone that did that which I miss since now I have the mytouch..but anyways if u can tell me the difference it'd be great or anything.....thanks 