I want to build a box to do this...

[ppatchmods]

i love this lo-fi fading delay in this song. i want to build a pedal that can achieve that kinda whammy bar slow detuning thing. any thoughts?
http://www.youtube.com/watch?v=E_exesnCA5Y

the only thing a can think is a delay pedal with an expression pedal on the time with a very small resistance that would just knudge the delay time down a bit....  

[ppatchmods]

...or a delay pedal with a built in very slow lfo on the time pot controled by a momentary footswitch(prefered method)

i think he uses a modulated delay with an oct-up but i just want the trailing delay sound that sounds like you are using your strat whammy bar

[StereoKills]

Try an octave up plus the Echo Base? I can get a similar modulated delay from my EB, might be able to put the octave pedal in front of it.