How can I make Cloudinary's URLs SEO friendly?

Generally, if you upload images to Cloudinary without telling Cloudinary much about your needs, it will use a random file name (public id) for this image, for example:

http://res.cloudinary.com/demo/image/upload/8jsb1xofxdqamu2rzwt9q.jpg 

If you supply a transformation, it might look like this -

http://res.cloudinary.com/demo/image/upload/w_150,h_150,c_crop,g_south/8jsb1xofxdqamu2rzwt9q.jpg

On upload, you can tell Cloudinary to use a specific file name (public id) instead of a random one, this will turn the URL to something like this -

http://res.cloudinary.com/demo/image/upload/w_150,h_150,c_crop,g_south/seo-friendly-name.jpg

You can then "name" the transformation portion using Cloudinary's interactive transformation creation console, so it might then turn to this -

http://res.cloudinary.com/demo/image/upload/t_thumb/seo-friendly-name.jpg

Cloudinary then supports applying your own CNAME ("Advanced" plan onward). Will turn to this -

http://img.mycname.com/image/upload/t_thumb/seo-friendly-name.jpg

Or if no transformation is needed -

http://img.mycname.com/image/upload/seo-friendly-name.jpg

Cloudinary also supports supplying a folder structure to the file name when necessary, etc. 
In general, you have much flexibility with Cloudinary.

UPDATE

We now support a new SEO friendly URLs feature for Cloudinary images. For more information:
http://cloudinary.com/blog/how_to_dynamically_create_seo_friendly_urls_for_your_site_s_images