The best guess so far: http://www.cucco2011.org/test_romano/ Click Pilot Info, then Pilots List. Based on December 2, 2009, WPRS ranking, will change when January ranking is available. US pilots chosen to go to the pre-Worlds, so far:

Zac Majors, Wills Wing T2C-144

Dustin Martin, Wills Wing T2C-144

Jeff O'Brien, Wills Wing T2C (144 or 154)

Davis Straub, Icaro Laminar MR1000

Jeff Shapiro, Wills Wing T2C-144

Derreck Turner, Moyes Litespeed S5

Ben Dunn, Moyes Litespeed

Each nation gets up to five pilots independent of WPRS ranking. If more than
five pilots from one country apply for the pre-Worlds, then the top five in that nation as per their January 2010 WPRS ranking are allowed in. When all those nations' slots are taken (some
nations won't have five slots because less than five pilots pre-registered from
that nation, for example, Turkey), then the remaining slots are available by
WPRS ranking to the pilots who pre-registered.

Turns out a lot of pilots from Italy pre-registered and they have a lot of good
WPRS rankings, and so fifteen pilots are coming from Italy. Derreck Turner and
Ben Dunn got in with their WPRS rankings. Many US pilots did not.

Everyone has to get their entry fee in with ten days (January 17th) or they go
to the end of the line. Starting on the 17th, pilots are chosen for the now
empty slots by pre-registration date.

The actual five man teams will be decided at the competition.

Update: The January WPRS ranking it up and the pilot list will be updated soon.