This is amazing!

High resolution sampling by laser desorption, then sampling by the mass spec can build up a high resolution data image.
Here's a blog post about applications for biological tissues:
http://pipeline.corante.com/archives/2010/...mple.php#zemail

For close up geological samples, this technique has some pretty amazing possibilities.

Attempt at representing MS data (well, normalized ion abundance) from a table into a graphic overlaid on Titan's surface here.