It was jah's PMJ work that enabled me (and many others I'm sure) to get into the Joggler-modding scene, followed by JogTools (I think that was the name).
I find it quite remarkable how far the whole scene has come with the various Linux distros, Windows and even Android all running happily (usually) on o2's little gadget!
"EVERY DAY I'M JOGGLERING!" Jogglering since Dec '09;
Tinkering with Jogglers since Feb '10 thanks to PMJ, Jogtools, PnP & sqpOS;
Gave something back Feb '12 to Apr '14 with PnP Mk II & PnP III;
Finally 'completed' PnP III Apr '15!
Hmmm, thats what my joggler looks like today. Not sure how I got so out of the loop, I used to do more stuff like this, 3com audrey, iOpener all in the loft.