Walking tour podcasts.... travel, journaling, sharing the experience

I can't think of a more unique way to share your travels and experiences with others, can you?  Creating a podcast live of the trip along with photos of the places and sites is a step beyond a series of slide presentations in the basement, no?  http://web.mit.edu/frontiers/

This seems to have a huge marketing appeal for actually getting me to purchase that ticket.  Ah, remember Venice?  Such a unique feeling to be in the city, seeing refrigerators delivered via boat, thinking of everyone having such great views of the waterfront, sitting in the piazza flirting with a Italian.   But I digress.