It's a nice feature now, downloading the latest podcast.
Things are bound to improve, if you have subscribed to the podcast you should just click something like "check for updates" in the podcast part of the iPod function of the iPhone, then automatically it loads the updated podcast. So I hope this is in the iPhone 2.3 software.
That 10MB limit needs to be lifted though, I am in a "lucky" country where for the equivalent of US$30 I have unlimited mobile 3G (covers most areas of the city, otherwise falls back to EDGE).
Being a developing country, one can imagine that EDGE and 3G coverage is sometimes better than fixed-line services like DSL, due to "leapfrogging".
So, If I've got a 25MB file, I don't need no stinkin' WiFi! I just need to have 3G coverage and Boom! It goes at a decent speed of about 1mbit/s or sometimes up to 2mbit/s
The difference is also, the 3G provider is a newer, more dynamic company, while the local DSL provider for businesses, WiFi hotspots, and homes, is our craptastic national telco...