Hi,
I just realized that Phone Gap JS delivered with Adobe CS 5.5 is an older version. There is no version number inside the PG JS document stored in the site root when intending to build. I overwrote the CS 5.5 PG JS with the 0.9.6 PG JS from the PG site today and will try it out. The difference in size is dramatic (non minimized versions):
Adobe CS 5.5 PG JS 103 kb
Phone Gap Site JS 0.9.6 130 kb
I stumbled over the same problem with the Adobe Air just a few weeks ago trying to build with Flash and Air and saw that the Air runtimes were different in Flash and Catalyst SDK. This seem to have been fixed during the last updates of CS 5.5.
/Ralf