NAV 2009 Three Tiered Role Client and Citrix

Hope this is an easy question, as I am a bit confused.

Now that NAV 2009 is three tiered and has the new client, do I stil need to use Citrix to deploy across a multi-site location?

Yes that is still recommended. The RTC is not a thi client, so you’d still need to provide the remote access through Citrix or TS.