Hi Megawat,

Indeed there are, for example a KPI solution from Transpara: http://www.transpara.com/

Of course you can easily and I mean easily, write you own solution providing you have the required licences from OSISoft. Depends on the scale of viewing data that you require. Drop me an email if you want to discuss about a custom solution or even some examples to get you going.

Is there a specific reason why you do not want to use an OSISoft product? i.e. RtWebparts

You could also essentially use any graphic solution for trends/graphs and hook it to the PI-OLEDB provider to retrieve data.