[Twisted-Python] twisted.positioning: status report and request for comments/feedback

[Laurens Van Houtven]

Also, regarding the message classes at every level: does this include
the top level? I thought the top level (eg most abstracted) would
contain a number of callbacks, such as:

    positionReceived(self, latitude, longitude)
    positionErrorReceived(self, hdop, vdop, pdop)
    altitudeReceived(self, altitude)
    altitudeErrorReceived(self, ...)

Et cetera. A sentence at this level seems a bit superfluous, but I can
see it being somewhat useful internally.

Laurens