I dont know but why do u find the calender to be rubbish? What more do you want Dagga_D? If you combine Microsfot Voice Command with Calender it works so great for me. It speaks out everything and moreover compatibility with outlook is fun. What more one needs?
As for hot key look at this thread if it might be of any help.
http://www.pocketpcaddict.com/forums...ght=right+menu