It seems that Alexander Pruss has accomplished the adaption of Fitaly to the Palm T|X, something that has has been missed by many T|X users who are fans of the Fitaly virtual keyboard as an input method. Fitaly has been a very popular input method for both Palm and Windows Mobile, but is no longer supported for new PalmOS devices due to the amount of effort required to adapt it for each new model.
Alexander is also the author of
FontSmoother. He is releasing the required Fitaly skin loader for the Tungsten X in conjunction with Jean Ichbiah, who I believe is the developer of Fitaly.
This is provided as-is with no guarantees or support, but I think that it will still be welcomed warmly by a many users. I am not too familiar with the topic, so you'll want to check out details for yourself. You can find more information
here, and you may want to read through the information to ensure that it is what you want.
This is just one more nice example of the great developer community we have in the mobile device world, and for PalmOS in particular.
And, of course, be sure to do a backup just in case. In fact, that's a good practice whenever you add new software.