Twittergrams + Podlinez = computer-free micropodcasting? Not quite

Podlinez is a free service which allows you to assign a phone number to a podcast feed (presumably audio only). Once you've set it up, anyone can dial the phone number associated with the feed and hear the latest audio post. I just ran my Twittergram feed through Podlinez (link) and added the Podlinez phone number to the "Title" text on Dave Winer's Twittergram-by-phone page. So, now, when I call in a post, Twitter contacts see:

In theory, this means that if you subscribe to my tweets via SMS updates, this message will arrive as a text message on your phone, and you'll be able to hear my audio update simply by calling that phone number. And, in fact, it works, but with a pretty crippling limitation, bad enough that I'll have to take that phone number back out of the standard text. Podlinez, which is built for a very different sort of service, apparently doesn't poll for feed updates very often. It took about 55 minutes before my audio message could actually be heard at that number. Until then, Podlinez was still playing my previous audio update, which was about two weeks old. I suppose I could change the text to read "Phone post (call 718-977-5949 after 1 hour)", but that'd be silly. The point of Twitter is immediacy and speed.

Well, it was an interesting idea.