Well, there seem to be a number of ways of creating gigapixel panoramas. Possibly the easiest to use is the GigaPan robotic mount ($379), which was used to create the tremendous image of the Barack Obama inauguration, along with a Canon G10 (it doesn’t fit larger cameras).
Another way is to hack up a Orion TeleTrackÂ Altazimuth ($249) astronomic mount with a serial port ($15), bluetooth ($35) and use Papywizard software (free) running on a Nokia N800 ($135). You’ll still need Autopano or similar stiching software to put the whole thing together.
I’m tempted to try both!