In what manner? There is more than one way to skin a cat, so to speak.
If you calibrate it right, it should be plenty sensitive. Take something like a toothpick and calibrate it. Put the Omnia on a flat surface, look DIRECTLY over it, and lightly tap and hold on each "X" until it switches.
That will give you the biggest improvement. If that doesnt do it, he other thing you can do is a registry hack, but beware--it may be way too sensitive, or completely inaccurate.
http://forum.ppcgeeks.com/showthread.php?t=51532
http://knguyentu.com/wordpress/2009/...900-unleashed/
Both have different tweaks.