Yes, absolutely, as a U.S. citizen you can stay abroad as long as you want.
Originally Posted by jazper_28
There are no restrictions of any kind.
However, as a U.S. citizen you still have to file a U.S. income tax on your worldwide income.
N-400 [Chicago office, via Nebraska Service Cntr]
Rec'd date: 12/06/2006
FP notice date: 12/20/2006
FP taken (Indianapolis): 01/11/2007
2nd FP notice 09/09/2008
2ndFP taken (Indianapolis) 09/26/2008
Interview letter 01/24/2009
Interview 03/26/2009 (completed)
Oath letter rec'd 04/29/09
Oath date 05/14/09 (completed)
U.S. pssprt applied and rec'd (Chicago pssprt agency) 05/22/2009
I am not a lawyer. Anything I say here is my personal opinion and should not be viewed as legal advice.