Pal park does not require any form of wireless devices to function, pal park reads the pokemon data from the game inserted into the GBA slot on the DS.
to the best of my knowledge, no such possibilty can occur in No$gba, due to the fact it cannot emulate the GBA slot whilst a DS game is being played.
the wifi connection is apparently being worked on, however, emulating a link to WFC would be extremely difficult, there is more information on the future updates of No$gba at their hompage
here, or at their forums
here