I am, sadly, so traumatized by exercising at all that I suspect I couldn't do two things at once. :( I've been on a treadmill and would have difficulty reading while jogging even if I were in better shape. But I can see how you might be able to do something else while on an exercise bike, On a related note: there's a man a few blocks down who's pulled his exercise bike out onto his porch and watches folks walk by. Seems like the best of both worlds to me--the safely of not biking in the street while also getting to be outside.

Walking and chatting is the best, isn't it? M.