Got it working after a little bit of playing... seems to work great. I only used two capacitors and a linreg to get a clean 3.3v instead of the 4 capacitors on the ladyada shield... I hope that's ok!
My xport doesn't seem to heat up at all... even after it's been on and working away for several hours, strange
Now just to get the thing doing something useful! It seems a little flaky sometimes...