Was trying out a Motorola Xoom in a Verizon Wireless store and i couldn't find Komodo in the android market. After a few searches i found out that while Xoom's have 3G they are not considered a phone and don't have a dialer. If your android app specifies that it uses the permission "android.permission.CALL_PHONE" and others, you will be filtered out on Xoom devices. Also issuing an ACTION_CALL INTENT will not work. Hopefully installing google voice fixes this problem for people?
Anyways to get your app to show up in the android market on the Xoom add this to your AndroidManifest.mxl
and see here for more information: