Can't vouch for them myself, but based on other message boards the seem to be a legit operation.
Some good ones:
Isolating earbuds - $2.67, shipped
9-LED flashlights, 2 pack - $3.05, shipped
20mW GREEN laser pointer, $39.99 shipped
Replacement iPod USB cable - $3.05 shipped
TONS of other goodies to look at.
Here's the owner's blog, including a phone number