For those Nexus One users who are undergoing with some bugs or issues with the smartphones, it know seems that Google itself not enquiring over the issues where as delivering some unreliable comments from a Google Guy on Google Support Forums :
I’ve seen some recent speculation on this thread about an OTA to improve 3G connectivity and I want to give you an update on the situation.
While we are continuing to monitor user feedback regarding the 3G performance on the Nexus One, we are no longer investigating further engineering improvements at this time.
If you are still experiencing 3G issues, we recommend that you try changing your location or even the orientation of your phone, as this may help in areas with weaker coverage.
via Gadget Venue