One of the big new features for VS in Whidbey is the ability to write custom visualizers for your classes. Visualizers are written in managed code, and present whatever interface they want to view and edit the data.

There are some obvious place where we're going to use this - if you've ever tried to look at the data in a dataset, you know that there's a lot of room for improvement. But we're interested in how you're planning on using it. Specifically:

1) How many visualizers do you think you will write?

2) What kind of objects will you write visualizers for?