I uploaded an Excel Spreadsheet and was amazed at all the data given and analyzed. I used the online sample with US Census data for a few screenshots here. This is what you can upload to work with, CSV, Excel, Sales Force data and Microsoft Dynamics CRM Data. The Cluster Algorithms are pretty interesting.
This was pretty interesting to say the least. The dynamics and different formats were very interesting. A search query is available to detail your exact information desired. You can read more about the company, Data Applied and what they do here. If you just want to watch the video, you can go here, and be sure to have Silverlight in your browser as an add in so it will work for you.
I can see this having some impact in healthcare as I have talked about dynamic screens being needed with EHR software too. BD
Here's an interesting video that gives you an idea of what working with data on the web can be like using Silverlight. The company is Data Applied, and if you can take the robotic narration you'll see some interesting data visualization examples. There's a link to sign up and try crunching your own data for free. I tried it out with and it's definitely worth a look. One nit I have is the mouse wheel deep zooms the data rather than scrolls the list. But there are interesting analysis you can run, like pivots, tree maps, forecasts and correlations.