Functionality proposal: sensor data and metrics in message replies

I would like to propose a new functionality; the option to include sensor data or performance metrics in message replies.

For example:

1. I'm out on a run, my current location is [gps_location].
2. I just did a [last_excersize_distance] run in [last_excersize_time] minutes!
3. [distance_weekly] km in one week! Yes!

We could also add stuff like the ETA of an excersize to let somebody know when you'll be done, or when you'll be home:

1. I'm sporting, I should be done around [excersize_eta]

I think this can be a fun, usefull addition. What do you guys think?