From nookDevs

Getting Protected Apps To Show in Market

Certain apps (e.g. SlingPlayer) have special settings which prevent them from being backed up normally. These apps do not appear by default in the market. To enable these apps you need to change the device fingerprint and spoof a valid device.

adb pull /system/build.prop

Edit the following line:

ro.build.fingerprint=generic/sdk/generic:Honeycomb/Nook/eng.rbrune.20110131.162619:eng/test-keys

so that it reads:

ro.build.fingerprint=google/soju/crespo:2.3.2/GRH78C/93600:user/release-keys

This spoofs the Nexus S running Android 2.3.2 per this site

Save the modified build.prop to NC.

adb remount
adb push build.prop /system/

Now clear the Market cache. On the NC, open the settings app and make the following changes:

 Settings -> Manage Applications -> All -> Market
 Clear Cache then Force Stop -- DO NOT clear data

 Settings -> Manage Applications -> All -> Google Services Framework
 Clear data then Force Stop

Then reboot the NC, for example:

adb reboot

Disconnect the USB cable.

Market should now show the protected apps.

To appear as the Motorola XOOM Tablet

Not thoroughly tested. May be helpful to install apps such as Google Body

In the instructions above, replace the above line:

ro.build.fingerprint=generic/sdk/generic:Honeycomb/Nook/eng.rbrune.20110131.162619:eng/test-keys

with:

ro.build.fingerprint=verizon/trygon/stingray:3.0/HRI39/101999:user/release-keys

Continue following the instructions above.