I did the same cycle trip again like yesterday, but now with NOKIA N9 and HTC Desire (Android 2.2.2).
Sky was clear again, I had a higher avg speed (10km/h faster) and it was later in the day (3 hr difference).
Results:
HTC Desire: 9.24 km
NOKIA N9: 9.34 km

The HTC Desire did a good job, still not acurate but better than the HD2 and N9.
The NOKIA N9 did better than yesterday, but still a big difference with the HTC phones.
Maybe the satelites were better positioned than yesterday.

I never lost GPS signal with the NOKIA N9, so it's not a bad GPS.

The Android version of Sports Tracker is further developed than the Meego version so that could be the cause of better results.
The Android version of Sports Tracker has the "GPS filtering" option and the Meego version not.