[gearjunkeez]

I went from the treo 755p to the touch. Have not tried the diamond yet. But, once you get used to the on-screen keyboard, it blows the treo away - even for one-handed use. And the Touch will be inexpensive - and much better than the samsung. You could try and play with a Diamond, I';m sure its just as easy to use. I have the Touch Pro, and only slide out the keyboard when I have a long email or report to type, otherwise the onscreen works great for me.