Just an update for posterity:
I just received my cable from PC-mobile and things are pretty rosy
I plugged it in, first my PSP switched off (bug...? Hope it won't happen again.)
I switched the thing back on and got my position displayed on the screen straight away.
No flaming hoops to jump through, no swearing involved, no baud rates to guess, no adjustments to make at all. It just works.
I am now officially impressed with Map This
Flawless communication at the first try between 2 totally alien units, 1 of which was never intended to run this programme or receive this sort of data, with a 3rd party cable as well... Pulling that off with a homebrew app is quite a feat.
Hardware/software list: PSP on 3.40 OE-A, Map This 4.97 for Holux, pc-mobile cable, Holux GPSlim240 receiver.
Now to test features and stability...
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