y'know...
I don't know if there is a guide or not...
Not a forte of mine ....telepathy...that is..
I never hunted and dug around to see if there was one...
Maybe there is...
Definitely asking others and doing a serious forensic hunt, not just here either...hunt the web, internet archive wayback machine too...
I am betting that some folks must have at least talked at length of the methods of implementing telepathy plugins on the maemo platforms...somewhere...
If not for M6...(due to its youth...)
Then for the older maemo platforms...
It is plausible to extrapolate from that information then and have a basis for applying it to Harmattan ...