About top…

As for encoding audio and video for use on mobile phones, there are many many companies in the US and elsewhere who are doing this. VoiceIndigo for example encodes MP3s as AMR the mono codec used by phones less capable than smartphones. We call them feature phones and a portion of US subscribers carry them. Also, if you want to learn more about how VoiceIndigo addresses the issues you raise, I invite you to listen to my interview with their CTO, Peter K. Lee at the following URL.

http://media-slaves.blogspot.com/2006/05/slave-tool-voiceindigo.html

Also, there’s a streaming solution available to Sprint users from Pod2mob which I’ve used to listen in podcasts prior to VI.

Nokia is shipping an application which is a podcatcher to download and then play podcasts locally. More memory needed unless your managing it closely. Future plans for the application include creating podcasts on the phone and xferring them to the web.

Bliptv is a service offered by Sprint that delivers video podcasts or clips to mobile devices.

MyNumo offers video podcasters a marketplace to sell their own episodes directly to viewers and share in the revenue at a rate of 12% per video.

I could go on….

Better than that, if you have a premium account, you can just tell us your existing RSS feed, we’ll scan it once an hour, pull in any new enclosure and automatically create a mobile stream for it (and a torrent too, if that’s your thing).
http://blog.movedigital.com/2006/07/30/auto-publish-makes-its-debut/
It’s called AutoPublish: