Calendar view of fellow travellers

I just tried to find out where my friends will be travelling May 1st and wondered why Dopplr doesn't make such a view available. Of course I could subscribe to my friends' trips as iCal and view them in a thirdparty calendar, but for now I can't see it in a specfic view on the website. Would be a nice enhancement to the "Fellow travellers" tap, don't you think?