I’ve just done this and I like the HTC keyboard. It seems faster and a bit better at predictive typing.
These are kam187’s instructions.
Original post here androidforums.com – htc keyboard on samsung!
– Download this zip file: Tastiera T9 Samsung Galaxy.zip
– Copy the two .apk files to the memory of you Galaxy (you can mount your SD card to your PC and copy the files – plug in the cable, pull down the notification bar and click ‘USB connected’, then mount the sdcard. It’ll show up as a new drive on your computer).
– Install Astro File Manager from the Android market.
– Open Astro File Manager find and click HTC_IME, click Open App Manager and then click the Install button.
– Open Astro File Manager find and click Clicker, click Open App Manager and then click the Install button.
Note: The installation of applications not sourced from the Android Market is blocked by default, so you will need to allow this.
– Go to Locale & Text in the settings menu and select Touch Input and Exit
– Go back into Locale & Text and in the Touch Input options choose the alphanumeric Keypad and exit.
– Now create a new text message and click and hold the text box and select Input method, and select Touch Input
(If you use adb you can just install the apk by typing adb install HTC-IME.apk and adb install Clicker.apk)
Here’s another set of instructions with some more details if you need them..
androinica.com – how to install the HTC Android soft keyboard without rooting your phone. No, that’s not the Australian version of ‘rooting’.