Does the new Nexus One Google Android phone have 3G connection problems ?

According to some reports, it seems the new Nexus One Google Android phone have 3G connection problems. A thread (http://www.google.com/support/forum/p/android/thread?tid=0bd8ccd4799040c2&hl=en) has been opened on this issue on the support forum that has been setup by Google for the Nexus One.

Personally, I don't have witnessed such problems with my Nexus One. I even use it on the underground where I previously stopped using my Htc Magic as I have experienced terrible performances to catch up with the frequent switchings between 2G, 2.5G and 3G networks.