Have a rather strange issue since I upgraded to 2.2 (using update.zip from here). Using and app like Navigation or Maps, when I use voice search to enter a location it sometimes inserts random words in front of the search words I spoke. For instance, I'll say something like "123 Main Street, Wherever, New York" and, after parsing my input, the app will display "Euro 123 Main Street, Wherever, New York." I played some with it today making sure the background was silent so there was no choice of it picking up something besides my voice and it still happened. It always inserts real words, not gibberish and I can find no commonality as to when it will happen.