Hi Cheryl and others,
I have started messing around with QuickTime reference movies and a tweaked version of the Blipit plugin from Brave New Code (note i'm talking about a WP plugin, not the new functionality at Blip.tv that I have just learned about via you!).
The Blipit plugin removes the Blip player and replaces it with a QuickTime player when your site is viewed on an iPhone. That's assuming you have uploaded a compatible video to Blip.
My reference movie is a .mov file and has a 1.5mbps version of the episode flattened into it as the default. But depending on the viewer's bandwidth, QuickTime will download an 800k or 450k version instead - I upload these files to Blip as well, and the reference movie (created with Apple's MakeRefMovie) contains their URLs.
So, desktop viewers of my vids get the Flash version. iTunes downloaders or anyone else who downloads the show rather than streaming it will get the full-fat 1.5mbps version (I make that a .mov file so I can include a hyperlink at the end to entice them to my blog, which works a treat).
iPhone viewers will get the full-fat version, or the 800k version, or the 450k version depending on their bandwidth (I tested a 90k version as well but it looked really awful so I dropped it).
I am trying to find out more about the new functionality at Blip - mainly whether it only works with .m4v files. I don't like using the m4v file extension - it is just too proprietary and it's unnecessary for it even to exist in my book.
My approach may seem quirky and control-freaky, but at this stage I would rather keep the functionality at my end (ie Wordpress). If Blip goes down the tubes (heaven forbid - I love those guys) I can move my videos somewhere else without losing the ability to send people either a Flash or h.264 version depending on their platform/connection speed.
As to Verdi's point: I am still offering .wmv videos as well as Flash and h.264 at Crash Test Kitchen. I would dearly love to axe the .wmv vids but people keep downloading them! Aargh!