Ran into this on the tubes this morning:

This jQuery plugin generates sparklines directly in the browser using data supplied either inline in the HTML, or via javascript.

http://omnipotent.net/jquery.sparkline/

In theory you'd be able to use this to sparkline-ize a PerformancePoint scorecard or analytic grid that returns CSV data in a cell, using this technique:

<span class="sparklines">1,2,3,4,5,4,3,2,1</span>

$('.sparklines').sparkline('html');

I'm not familiar with how to follow non-jQuery DOM modifications (all PerformancePoint webpart content is dynamically injected into the DOM) with jQuery That seems like the tricky part. Thoughts?