Recently active topics in I want Sandy tagged with rtm

Ultimately, I'd love to be able to give Sandy authentication to perform tasks like these:

'add Dinner with John to gCal 01/01 7pm'

'add Clean the Fridge to RTM, due today'

Or even, with an email that identifies a meeting time, it would be great to be able to forward the email to her and say 'Sandy, add this to gCal'.

(I know I can add things to those sites by emailing them too, but being able to do it all from my inbox via one email address would be sweeeeet.)

I like to use Remember the Milk as a to do list. I wish Sandy could go check my to do list for me (by reading iCal or atom list)