I'm thinking that they may also have pinned the version for size -- I've been uninstalling lots of stuff (evince,abiword, gnumeric, transmission, pidgin, etc.) to make room for changes.
Synaptic adds to the internal flash drive -- gDebi is configured to add to the SD card.
If anyone knows how to config Synaptic to add to the SD card, please write a tutorial!
Make sure you don't run out of room, it'll be bad...
m a r