From Mexico.purplecow.org
Notes for Gal Tab
Full screen for old apps
http://www.thegalaxytab.com/2010/11/07/how-to-scale-apps-full-screen-on-samsung-galaxy-tab/
1. Download “Spare Parts” application from Android Market and install it. If you visit us from the Galaxy Tab, follow this link : Spare Parts
2. Launch “Spare Parts” and scroll down to “Compability Mode”. Un-tick the box and tick it back.
3. Reboot the Galaxy Tab.
4. Launch “Spare Parts” again, scroll down to “Compatibility Mode” and un-tick the box.
5. Reboot the Galaxy Tab.
6. Congratulations. Your apps are displayed in full screen!