Originally Posted by
JHBThree Because in order for saving to SD to work they would have had to rewrite significant portions of the OS and almost all of the built in applications. The limited support the device has for SD was certainly coded by Samsung and is not built into the OS.
This is not true. Android was built with SD cards in mind. Multiple SD cards ... not so much. Still, the groundwork is there, and it's trivial to add support in the applications. Google doesn't add access to the "external" card in its interfaces because their designer thinks people would find it too confusing.
All applications that support the external
should be working. I haven't verified that, but there's no reason they shouldn't work.
Android services (which don't have a UI) should support the SD card without issue. The primary one that springs to mind is the MediaScanner which allows you to play music and view pictures located on the "external" card.