In reply to stanante:
i think it would be most useful for grand scale alpinism and mountaineering routes.
Google earth etc already have quite decent resolution in some areas, not sure about further afield.
Paul Ramsden has linked his longevity to the extensive preparation and research he does on his routes, so i think another tool in the box would only be a benefit for this kind of climbing.
for single pitch rock climbing i havent been able to think of a way it would be 'better' than current practices.