I was on my lunch break at work today (work at Tesco) and I went to listen to the latest Engadget podcast but for some reason my iTunes had not been updating it (still updated the other podcast, Drunk Tank, fine). So I went to iTunes to download it and it told me I could not download it over 3G as it was over 20MB...so I hit the title of the podcast on the list and instead it streamed it. I don't see what the difference is in me downloading a 68MB podcast and it streaming it to me. Also, when I tried to listen again it resumed from where I left off, the same as it would on my iPhone. AND the progress bar across the top was mostly filled in meaning it had downloaded more of it and kept it downloaded. What's the point?