I dug up some interesting info on the N810 GPS chipset by examining gpsdriver ('strings /usr/sbin/gpsdriver'):

1) gpsdriver repeatedly references 'GPS5300'. This is a "lowest cost" GPS chipset made by Texas instruments for mobile phones. See this link for example:

http://focus.ti.com/general/docs/wtb...+OT+navilink_4

So it appears that N810 does NOT have a SiRF Star III chip after all. This is bad news for N810 owners, as no amount of software changes by Nokia will help the 2+ minute aquisition times. You can also forget about WAAS.

2) Internal GPS is controlled via /dev/ttyS0.

Thoughts? I hope someone can prove me wrong regarding SiRF Star III.

Edit: It has been confirmed that N810 indeed has a TI 5300 GPS chip.