I'm looking at getting one too.
We will probably be shooting in a room/ hall around 10 x 10m. We'll plant a tablet/ laptop/ PC in a central area for wireless uploads. No need to be instant - hence not really tethered.
Just need to be reasonably quick (a minute or 2 for a 10MP jpeg) and 'secure' - we won't be reviewing immediately, just want to make sure they get uploaded automatically.
Will be either an iOS tablet or a windows laptop/desktop.
Anyone with first-hand experience with toshiba or eye-fi?