AutoCAD 2010 Subscription Advantage pack is now available to AutoCAD subscription members. Other have to wait for AutoCAD 2011.
Isolate, Add Selected, Select Similar is something that been found in verticals earlier and as 3:rd party tools.
With Isolate Objects, Hide Objects and End Object Isolation you get more freedom on visibility of objects that extends beyond layers.
There are also two Draw Order tools: Bring Annotations to Front, Send Hatches to Back.
These are some useful tools so go and grab this advantage pack.
Here is a video showing the features.