Patrick refuses to say which banks her investment group is now going after but admits she picked a fight with the biggest kid on the block Bank of America and its junk-mortgage-riddled Countrywide Financial unit to send a message to the rest of Wall Street.

FORBES: Wall Street's New Nightmare

By using the cursor to select smaller and smaller groups of letters within this block, a patient can eventually indicate which letter he wishes to add to the message he is composing.

ECONOMIST: Neurology

We also saw a brief demo of the prototype application, and sure enough, it showed us when an LED block was placed backwards with an error message -- you can see it in action in the video below.

ENGADGET