Maperture points to a NOKIA Lab research covering indoor navigation and orientation issues, stating the obvious:

Without explicitly riding a dead horse: you'll need to find your indoor location coming from outdoors first. If even larger buildings, malls, conference centers or touristic spots aren't mapped - the use case for indoor orientation certainly is a secondary advantage.
EDIT - via ITNews Australia via Slashdot
Modeling Wi-Fi Dead Spots
The technique identifies locations at which the network should be tested by combining wireless signal models with publicly-available information about basic topography, street locations and land use.The app from HP and Rice University was detailed in paper that won top honors at the annual MobiCom ’08 wireless conference in San Francisco recently. The good news: it's 90% accurate and reduces the number of locations that need to be tested to just 2%.
Opinions?
[BTW and kudos to Maperture -- this is a sentence you'd get punished for in school ;-) ]
Some of these projects are incubated under scientific exploration umbrellas working alongside academia within a consequence-free environment that encourages rapid risk taking.


