[app] dropbox app with 48 gigs free space
I found this scanning the forum. I d/l this zip and flashed it in ss3 over minimoto with no problems and got the free space. After opening the app for the first time it notified me of an update and i chose LATER. A few minutes later i got my email and loged on to the account with my desktop and followed the instructions to get the free space. You gotta watch an intro video thing, d/l dropbox on the desktop (if you dont already have it), upload something, ect.
Just passing it along that it did work for me on my D3
As always you should make a backup of your current rom slot that your gonna flash this on before you flash! !
EDIT: After checking this it flashes to your system apps. You should be able to remove this with a file manager or flash your backup, then install the market version and still keep the free space after you set it up, but not sure about this. I will try it later and update.
Sent from my DROID3 using XDA