Thanks to a heads up from Leonard Low, I tried Wirenode for an easy mobile blog. It took less than a minute to set this up. Check the mobile version of this blog out at mlearnopedia.wirenode.mobi.
There are a number of additional tools available to quickly create a mobile site including Mob5.com, Winksite.com and Mobisite Galore.
Wirenode provides the standard text, image, header, list or separator capabilities, but also enables you to easily add widgets. These include widgets for an RSS blog, twitter status, image gallery, message of the day, clock or a message widget for visitors to leave messages. There are also nice promotional widgets that you can use to place on your current clog or website to direct visitors to your mobile site. You can see my current experiment at judyb.wirenode.mobi.