Those who are frustrated by accessibility issues when browsing the web on iPhones or G1s may not have to wait much longer for relief. The World Wide Web Consortium, headed by Sir Tim Berners-Lee, has just released a tool called the W3C mobileOK checker to facilitate the verification of content accessibility on various devices. The tool enables authors to do step by step investigations of their content to make sure it is easily used and navigated. It is built on the backbone of the W3C validator, which performs a similar service for webpages accessed through a regular browser. To read more about the open source checker, click here; it can be used to determine a site’s mobile viability here.