bad, bad twhirl

 4076 twhirl       4.2%  0:27.47   9   182    568   40M  7664K    52M   402M

This is while it's hidden. I presume it's not actually twhirl, but is instead is the Adobe Air platform.
When I start top and I'm not doing anything I expect to see something akin to:

 4102 top          6.5%  0:01.00   1    18     29 1124K   188K  1716K    18M

at the head of the list. Not something that's supposed to be running in the background doing nothing