Hi Jayson,
Yes, I have used version 6 of Dundas to visualise data (KPI dashboard) but essentially any graphical chart package will do. I hooked the charts up to PI-OLEDB to retrieve data and displayed via Dundas. I have also used
ZedGraph, which is Open Source and a lot cheaper (free) than Dundas!
There are a couple of whitepapers from OSI on using OLAP with a PI system, worth a read if you are considering going down this route of presentation. Are you researching for a project or after some practical examples with Dundas/OLEDB? Of course nothing stopping you using PISDK and dynamically building your own DataTables/DataSets but OLEDB is much neater approach, especially for a web based presentation layer (e.g. RtWebParts).
Cheers,
Rhys.
Principal Consultant
Real-Time Data Management @ Wipro Technologies