I had the same idea espoused in Robin Good’s post about appcasting. I experimented with the idea using this post on my blog. This was a lame example as my search sidebar extension is only 11KB, but it was a proof of concept – certainly the concept is more interesting when applied to larger files like Linux ISO images…
I think we are on to something here with the idea of distributing software using RSS enclosures.
In fact, I am been very underwhelmed by the quality of the podcasts that I’ve found – I’ve found them completely boring and useless – but I could definitely appreciate getting the latest Knoppix ISO automatically overnight using this technology.