The ability to apply segments to a dashboard currently exists. This is a great feature!
If you switch from one report suite to another while viewing a dashboard containing segments, all applied segments in the dashboard will disappear. This makes it impossible to create a shared dashboards with segments. (The obvious caveat is here is that segments you would like to apply across report suites are applicable and have been shared - which mine are.)
This problem causes me to have to manually update each reportet that contained a segment. I believe this to go against the whole purpose of dashboarding, especially when our configuration is the same across report suites.
New Idea Request:
When switching report suites, make globally avaibale segments stick.