I use the Gingerbread 2.3 Keyboard ported for the Incredible. Just search for it in the market. It's free. Make sure you install "Better Keyboard 8" as well as that will give you an option in your settings menu to choose which keyboard you want to use in general, and you can select the "Gingerbread Keyboard" there then go type away with your new Keyboard.
I've tried them all and honestly, this is the best one for the HTC Incredible that I've found so far.
Hope this helps
